61936965 has 12 divisors (see below), whose sum is σ = 107357484. Its totient is φ = 33033024.

The previous prime is 61936951. The next prime is 61936991. The reversal of 61936965 is 56963916.

It can be written as a sum of positive squares in 2 ways, for example, as 15233409 + 46703556 = 3903^2 + 6834^2 .

It is not a de Polignac number, because 61936965 - 2⁴ = 61936949 is a prime.

It is a super-2 number, since 2×61936965² = 7672375266822450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1376377 = 61936965 / (6 + 1 + 9 + 3 + 6 + 9 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 61936965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688144 + ... + 688233.

It is an arithmetic number, because the mean of its divisors is an integer number (8946457).

Almost surely, 2^61936965 is an apocalyptic number.

It is an amenable number.

61936965 is a deficient number, since it is larger than the sum of its proper divisors (45420519).

61936965 is a wasteful number, since it uses less digits than its factorization.

61936965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376388 (or 1376385 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 61936965 is about 7870.0041296050. The cubic root of 61936965 is about 395.6549833898.

The spelling of 61936965 in words is "sixty-one million, nine hundred thirty-six thousand, nine hundred sixty-five".