72619870 has 32 divisors (see below), whose sum is σ = 132857856. Its totient is φ = 28576800.

The previous prime is 72619861. The next prime is 72619871. The reversal of 72619870 is 7891627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72619871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267835 + ... + 268105.

It is an arithmetic number, because the mean of its divisors is an integer number (4151808).

Almost surely, 2^72619870 is an apocalyptic number.

72619870 is a deficient number, since it is larger than the sum of its proper divisors (60237986).

72619870 is a wasteful number, since it uses less digits than its factorization.

72619870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 72619870 is about 8521.7292845995. The cubic root of 72619870 is about 417.2072265825.

The spelling of 72619870 in words is "seventy-two million, six hundred nineteen thousand, eight hundred seventy".