72868830 has 32 divisors (see below), whose sum is σ = 182490624. Its totient is φ = 18586656.

The previous prime is 72868823. The next prime is 72868837. The reversal of 72868830 is 3886827.

It is an interprime number because it is at equal distance from previous prime (72868823) and next prime (72868837).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72868837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52114 + ... + 53493.

It is an arithmetic number, because the mean of its divisors is an integer number (5702832).

Almost surely, 2^72868830 is an apocalyptic number.

72868830 is an abundant number, since it is smaller than the sum of its proper divisors (109621794).

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

72868830 is a wasteful number, since it uses less digits than its factorization.

72868830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105640.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 72868830 is about 8536.3241503589. The cubic root of 72868830 is about 417.6834481326.

The spelling of 72868830 in words is "seventy-two million, eight hundred sixty-eight thousand, eight hundred thirty".