61031804 has 12 divisors (see below), whose sum is σ = 107250528. Its totient is φ = 30388800.

The previous prime is 61031801. The next prime is 61031807. The reversal of 61031804 is 40813016.

It is an interprime number because it is at equal distance from previous prime (61031801) and next prime (61031807).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61031804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61031801) 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, 30692 + ... + 32619.

It is an arithmetic number, because the mean of its divisors is an integer number (8937544).

Almost surely, 2^61031804 is an apocalyptic number.

It is an amenable number.

61031804 is a deficient number, since it is larger than the sum of its proper divisors (46218724).

61031804 is a wasteful number, since it uses less digits than its factorization.

61031804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63556 (or 63554 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61031804 is about 7812.2854530541. The cubic root of 61031804 is about 393.7181197335.

The spelling of 61031804 in words is "sixty-one million, thirty-one thousand, eight hundred four".