72660070 has 16 divisors (see below), whose sum is σ = 149472288. Its totient is φ = 24912000.

The previous prime is 72660043. The next prime is 72660113. The reversal of 72660070 is 7006627.

It is a congruent number.

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, 518931 + ... + 519070.

It is an arithmetic number, because the mean of its divisors is an integer number (9342018).

Almost surely, 2^72660070 is an apocalyptic number.

72660070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72660070 is an abundant number, since it is smaller than the sum of its proper divisors (76812218).

72660070 is a wasteful number, since it uses less digits than its factorization.

72660070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038015.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72660070 is about 8524.0876344627. The cubic root of 72660070 is about 417.2841965022.

Adding to 72660070 its reverse (7006627), we get a palindrome (79666697).

The spelling of 72660070 in words is "seventy-two million, six hundred sixty thousand, seventy".