61959623 has 12 divisors (see below), whose sum is σ = 68819520. Its totient is φ = 55735680.

The previous prime is 61959613. The next prime is 61959629. The reversal of 61959623 is 32695916.

It is not a de Polignac number, because 61959623 - 2⁸ = 61959367 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61959629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9098 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (5734960).

Almost surely, 2^61959623 is an apocalyptic number.

61959623 is a deficient number, since it is larger than the sum of its proper divisors (6859897).

61959623 is a wasteful number, since it uses less digits than its factorization.

61959623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398 (or 5387 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 61959623 is about 7871.4435143752. The cubic root of 61959623 is about 395.7032241437.

The spelling of 61959623 in words is "sixty-one million, nine hundred fifty-nine thousand, six hundred twenty-three".