61936493 has 4 divisors (see below), whose sum is σ = 64629408. Its totient is φ = 59243580.

The previous prime is 61936487. The next prime is 61936499. The reversal of 61936493 is 39463916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (61936487) and next prime (61936499).

It is a cyclic number.

It is not a de Polignac number, because 61936493 - 2⁶ = 61936429 is a prime.

It is a super-2 number, since 2×61936493² = 7672258330278098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61936493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61936499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346423 + ... + 1346468.

It is an arithmetic number, because the mean of its divisors is an integer number (16157352).

Almost surely, 2^61936493 is an apocalyptic number.

It is an amenable number.

61936493 is a deficient number, since it is larger than the sum of its proper divisors (2692915).

61936493 is a wasteful number, since it uses less digits than its factorization.

61936493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692914.

The product of its digits is 104976, while the sum is 41.

The square root of 61936493 is about 7869.9741422701. The cubic root of 61936493 is about 395.6539783377.

The spelling of 61936493 in words is "sixty-one million, nine hundred thirty-six thousand, four hundred ninety-three".