872606739 has 4 divisors (see below), whose sum is σ = 1163475656. Its totient is φ = 581737824.

The previous prime is 872606737. The next prime is 872606767. The reversal of 872606739 is 937606278.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 872606739 - 2¹ = 872606737 is a prime.

It is a super-2 number, since 2×872606739² = 1522885041896428242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872606737) 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, 145434454 + ... + 145434459.

It is an arithmetic number, because the mean of its divisors is an integer number (290868914).

Almost surely, 2^872606739 is an apocalyptic number.

872606739 is a deficient number, since it is larger than the sum of its proper divisors (290868917).

872606739 is a wasteful number, since it uses less digits than its factorization.

872606739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290868916.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 872606739 is about 29539.9177216187. The cubic root of 872606739 is about 955.5927677809.

The spelling of 872606739 in words is "eight hundred seventy-two million, six hundred six thousand, seven hundred thirty-nine".