72700671 has 16 divisors (see below), whose sum is σ = 100137600. Its totient is φ = 46880928.

The previous prime is 72700657. The next prime is 72700679. The reversal of 72700671 is 17600727.

It is a happy number.

It is not a de Polignac number, because 72700671 - 2¹¹ = 72698623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72700679) 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, 18040 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (6258600).

Almost surely, 2^72700671 is an apocalyptic number.

72700671 is a deficient number, since it is larger than the sum of its proper divisors (27436929).

72700671 is a wasteful number, since it uses less digits than its factorization.

72700671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 72700671 is about 8526.4688470668. The cubic root of 72700671 is about 417.3619053960.

The spelling of 72700671 in words is "seventy-two million, seven hundred thousand, six hundred seventy-one".