61658432 has 28 divisors (see below), whose sum is σ = 133478016. Its totient is φ = 28026240.

The previous prime is 61658417. The next prime is 61658447. The reversal of 61658432 is 23485616.

It is an interprime number because it is at equal distance from previous prime (61658417) and next prime (61658447).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61658392 and 61658401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43088 + ... + 44495.

It is an arithmetic number, because the mean of its divisors is an integer number (4767072).

Almost surely, 2^61658432 is an apocalyptic number.

It is an amenable number.

61658432 is an abundant number, since it is smaller than the sum of its proper divisors (71819584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61658432 is a wasteful number, since it uses less digits than its factorization.

61658432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87606 (or 87596 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 61658432 is about 7852.2883288886. The cubic root of 61658432 is about 395.0610000329.

It can be divided in two parts, 616584 and 32, that added together give a palindrome (616616).

The spelling of 61658432 in words is "sixty-one million, six hundred fifty-eight thousand, four hundred thirty-two".