972887427 has 24 divisors (see below), whose sum is σ = 1451983104. Its totient is φ = 627331824.

The previous prime is 972887423. The next prime is 972887431. The reversal of 972887427 is 724788279.

It is an interprime number because it is at equal distance from previous prime (972887423) and next prime (972887431).

It is not a de Polignac number, because 972887427 - 2² = 972887423 is a prime.

It is a super-2 number, since 2×972887427² = 1893019891229360658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (972887423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27658 + ... + 52064.

It is an arithmetic number, because the mean of its divisors is an integer number (60499296).

Almost surely, 2^972887427 is an apocalyptic number.

972887427 is a deficient number, since it is larger than the sum of its proper divisors (479095677).

972887427 is a wasteful number, since it uses less digits than its factorization.

972887427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24559 (or 24556 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 972887427 is about 31191.1434064223. The cubic root of 972887427 is about 990.8795458711.

The spelling of 972887427 in words is "nine hundred seventy-two million, eight hundred eighty-seven thousand, four hundred twenty-seven".