73661804 has 12 divisors (see below), whose sum is σ = 128977800. Its totient is φ = 36811008.

The previous prime is 73661773. The next prime is 73661813. The reversal of 73661804 is 40816637.

It is a super-2 number, since 2×73661804² = 10852122737068832, which contains 22 as substring.

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, 6092 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (10748150).

Almost surely, 2^73661804 is an apocalyptic number.

It is an amenable number.

73661804 is a deficient number, since it is larger than the sum of its proper divisors (55315996).

73661804 is a wasteful number, since it uses less digits than its factorization.

73661804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952 (or 9950 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 73661804 is about 8582.6455128940. The cubic root of 73661804 is about 419.1930917199.

The spelling of 73661804 in words is "seventy-three million, six hundred sixty-one thousand, eight hundred four".