61946685 has 24 divisors (see below), whose sum is σ = 107560440. Its totient is φ = 32980992.

The previous prime is 61946681. The next prime is 61946699. The reversal of 61946685 is 58664916.

It can be written as a sum of positive squares in 4 ways, for example, as 3790809 + 58155876 = 1947^2 + 7626^2 .

It is not a de Polignac number, because 61946685 - 2² = 61946681 is a prime.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61946685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61946681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43261 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (4481685).

Almost surely, 2^61946685 is an apocalyptic number.

It is an amenable number.

61946685 is a deficient number, since it is larger than the sum of its proper divisors (45613755).

61946685 is a wasteful number, since it uses less digits than its factorization.

61946685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2394 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 61946685 is about 7870.6216399977. The cubic root of 61946685 is about 395.6756795135.

The spelling of 61946685 in words is "sixty-one million, nine hundred forty-six thousand, six hundred eighty-five".