972836039 has 4 divisors (see below), whose sum is σ = 1111812624. Its totient is φ = 833859456.

The previous prime is 972836027. The next prime is 972836057. The reversal of 972836039 is 930638279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930638279 = 131 ⋅7104109.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972836039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972835984 and 972836002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972856039) 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, 69488282 + ... + 69488295.

It is an arithmetic number, because the mean of its divisors is an integer number (277953156).

Almost surely, 2^972836039 is an apocalyptic number.

972836039 is a deficient number, since it is larger than the sum of its proper divisors (138976585).

972836039 is a wasteful number, since it uses less digits than its factorization.

972836039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138976584.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 972836039 is about 31190.3196360666. The cubic root of 972836039 is about 990.8620994488.

The spelling of 972836039 in words is "nine hundred seventy-two million, eight hundred thirty-six thousand, thirty-nine".