73870970 has 16 divisors (see below), whose sum is σ = 133121448. Its totient is φ = 29514240.

The previous prime is 73870961. The next prime is 73870991. The reversal of 73870970 is 7907837.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65788321 + 8082649 = 8111^2 + 2843^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5990 + ... + 13550.

Almost surely, 2^73870970 is an apocalyptic number.

73870970 is a deficient number, since it is larger than the sum of its proper divisors (59250478).

73870970 is a wasteful number, since it uses less digits than its factorization.

73870970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8545.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 73870970 is about 8594.8222785582. The cubic root of 73870970 is about 419.5894892955.

The spelling of 73870970 in words is "seventy-three million, eight hundred seventy thousand, nine hundred seventy".