872412739 has 4 divisors (see below), whose sum is σ = 951723000. Its totient is φ = 793102480.

The previous prime is 872412691. The next prime is 872412769. The reversal of 872412739 is 937214278.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872412739 is a prime.

It is a super-2 number, since 2×872412739² = 1522207974338964242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 872412695 and 872412704.

It is not an unprimeable number, because it can be changed into a prime (872412769) 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, 39655114 + ... + 39655135.

It is an arithmetic number, because the mean of its divisors is an integer number (237930750).

Almost surely, 2^872412739 is an apocalyptic number.

872412739 is a deficient number, since it is larger than the sum of its proper divisors (79310261).

872412739 is a wasteful number, since it uses less digits than its factorization.

872412739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79310260.

The product of its digits is 169344, while the sum is 43.

The square root of 872412739 is about 29536.6338468012. The cubic root of 872412739 is about 955.5219459820.

The spelling of 872412739 in words is "eight hundred seventy-two million, four hundred twelve thousand, seven hundred thirty-nine".