972667519 has 4 divisors (see below), whose sum is σ = 972766296. Its totient is φ = 972568744.

The previous prime is 972667499. The next prime is 972667523. The reversal of 972667519 is 915766279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 972667519 - 2⁷ = 972667391 is a prime.

It is a super-2 number, since 2×972667519² = 1892164205035230722, 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 (972697519) 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, 32749 + ... + 54934.

It is an arithmetic number, because the mean of its divisors is an integer number (243191574).

Almost surely, 2^972667519 is an apocalyptic number.

972667519 is a deficient number, since it is larger than the sum of its proper divisors (98777).

972667519 is a wasteful number, since it uses less digits than its factorization.

972667519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98776.

The product of its digits is 1428840, while the sum is 52.

The square root of 972667519 is about 31187.6180398568. The cubic root of 972667519 is about 990.8048819538.

The spelling of 972667519 in words is "nine hundred seventy-two million, six hundred sixty-seven thousand, five hundred nineteen".