972838687 has 8 divisors (see below), whose sum is σ = 979795440. Its totient is φ = 965899200.

The previous prime is 972838679. The next prime is 972838697. The reversal of 972838687 is 786838279.

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

It is a cyclic number.

It is not a de Polignac number, because 972838687 - 2³ = 972838679 is a prime.

It is a super-2 number, since 2×972838687² = 1892830221847767938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972838667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121603 + ... + 129355.

It is an arithmetic number, because the mean of its divisors is an integer number (122474430).

Almost surely, 2^972838687 is an apocalyptic number.

972838687 is a deficient number, since it is larger than the sum of its proper divisors (6956753).

972838687 is a wasteful number, since it uses less digits than its factorization.

972838687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633.

The product of its digits is 8128512, while the sum is 58.

The square root of 972838687 is about 31190.3620851057. The cubic root of 972838687 is about 990.8629984699.

The spelling of 972838687 in words is "nine hundred seventy-two million, eight hundred thirty-eight thousand, six hundred eighty-seven".