72901010 has 32 divisors (see below), whose sum is σ = 161505792. Its totient is φ = 23071680.

The previous prime is 72901001. The next prime is 72901013. The reversal of 72901010 is 1010927.

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

It is not an unprimeable number, because it can be changed into a prime (72901013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39146 + ... + 40965.

It is an arithmetic number, because the mean of its divisors is an integer number (5047056).

Almost surely, 2^72901010 is an apocalyptic number.

72901010 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72901010 is an abundant number, since it is smaller than the sum of its proper divisors (88604782).

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

72901010 is a wasteful number, since it uses less digits than its factorization.

72901010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80138.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 72901010 is about 8538.2088285541. The cubic root of 72901010 is about 417.7449242363.

Adding to 72901010 its reverse (1010927), we get a palindrome (73911937).

The spelling of 72901010 in words is "seventy-two million, nine hundred one thousand, ten".