72703074 has 16 divisors (see below), whose sum is σ = 145518912. Its totient is φ = 24215568.

The previous prime is 72703051. The next prime is 72703097. The reversal of 72703074 is 47030727.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72703051) and next prime (72703097).

It is an alternating number because its digits alternate between odd and even.

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, 5332 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (9094932).

Almost surely, 2^72703074 is an apocalyptic number.

72703074 is an abundant number, since it is smaller than the sum of its proper divisors (72815838).

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

72703074 is a wasteful number, since it uses less digits than its factorization.

72703074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9401.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 72703074 is about 8526.6097600394. The cubic root of 72703074 is about 417.3665037470.

The spelling of 72703074 in words is "seventy-two million, seven hundred three thousand, seventy-four".