872381604 has 12 divisors (see below), whose sum is σ = 2035557104. Its totient is φ = 290793864.

The previous prime is 872381603. The next prime is 872381621. The reversal of 872381604 is 406183278.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×872381604² = 1522099325995225632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872381603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36349222 + ... + 36349245.

Almost surely, 2^872381604 is an apocalyptic number.

It is an amenable number.

872381604 is an abundant number, since it is smaller than the sum of its proper divisors (1163175500).

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

872381604 is a wasteful number, since it uses less digits than its factorization.

872381604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72698474 (or 72698472 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 872381604 is about 29536.1067847474. The cubic root of 872381604 is about 955.5105788357.

The spelling of 872381604 in words is "eight hundred seventy-two million, three hundred eighty-one thousand, six hundred four".