72098970 has 32 divisors (see below), whose sum is σ = 174724992. Its totient is φ = 19038912.

The previous prime is 72098969. The next prime is 72098981. The reversal of 72098970 is 7989027.

It is a super-2 number, since 2×72098970² = 10396522950121800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8577 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (5460156).

Almost surely, 2^72098970 is an apocalyptic number.

72098970 is an abundant number, since it is smaller than the sum of its proper divisors (102626022).

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

72098970 is a wasteful number, since it uses less digits than its factorization.

72098970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23446.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 72098970 is about 8491.1112346971. Note that the first 3 decimals coincide. The cubic root of 72098970 is about 416.2072939079.

The spelling of 72098970 in words is "seventy-two million, ninety-eight thousand, nine hundred seventy".