872606738 has 8 divisors (see below), whose sum is σ = 1310632380. Its totient is φ = 435729280.

The previous prime is 872606737. The next prime is 872606767. The reversal of 872606738 is 837606278.

It can be written as a sum of positive squares in 2 ways, for example, as 666310969 + 206295769 = 25813^2 + 14363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×872606738² = 1522885038406001288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872606692 and 872606701.

It is not an unprimeable number, because it can be changed into a prime (872606737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285143 + ... + 288186.

Almost surely, 2^872606738 is an apocalyptic number.

872606738 is a deficient number, since it is larger than the sum of its proper divisors (438025642).

872606738 is a wasteful number, since it uses less digits than its factorization.

872606738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574092.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 872606738 is about 29539.9177046924. The cubic root of 872606738 is about 955.5927674159.

The spelling of 872606738 in words is "eight hundred seventy-two million, six hundred six thousand, seven hundred thirty-eight".