73961880 has 64 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 19662720.

The previous prime is 73961863. The next prime is 73961887. The reversal of 73961880 is 8816937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73961887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49545 + ... + 51015.

It is an arithmetic number, because the mean of its divisors is an integer number (3477600).

Almost surely, 2^73961880 is an apocalyptic number.

It is an amenable number.

73961880 is an abundant number, since it is smaller than the sum of its proper divisors (148604520).

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

73961880 is a wasteful number, since it uses less digits than its factorization.

73961880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 73961880 is about 8600.1093016310. The cubic root of 73961880 is about 419.7615426447.

The spelling of 73961880 in words is "seventy-three million, nine hundred sixty-one thousand, eight hundred eighty".