72870430 has 8 divisors (see below), whose sum is σ = 131166792. Its totient is φ = 29148168.

The previous prime is 72870409. The next prime is 72870443. The reversal of 72870430 is 3407827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72870392 and 72870401.

It is a congruent number.

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, 3643512 + ... + 3643531.

It is an arithmetic number, because the mean of its divisors is an integer number (16395849).

Almost surely, 2^72870430 is an apocalyptic number.

72870430 is a deficient number, since it is larger than the sum of its proper divisors (58296362).

72870430 is a wasteful number, since it uses less digits than its factorization.

72870430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287050.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 72870430 is about 8536.4178669978. The cubic root of 72870430 is about 417.6865051718.

The spelling of 72870430 in words is "seventy-two million, eight hundred seventy thousand, four hundred thirty".