73031870 has 16 divisors (see below), whose sum is σ = 131582448. Its totient is φ = 29184960.

The previous prime is 73031869. The next prime is 73031879. The reversal of 73031870 is 7813037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73031879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10082 + ... + 15738.

It is an arithmetic number, because the mean of its divisors is an integer number (8223903).

Almost surely, 2^73031870 is an apocalyptic number.

73031870 is a deficient number, since it is larger than the sum of its proper divisors (58550578).

73031870 is a wasteful number, since it uses less digits than its factorization.

73031870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 73031870 is about 8545.8685924837. The cubic root of 73031870 is about 417.9947306708.

The spelling of 73031870 in words is "seventy-three million, thirty-one thousand, eight hundred seventy".