972767407 has 4 divisors (see below), whose sum is σ = 999058456. Its totient is φ = 946476360.

The previous prime is 972767401. The next prime is 972767417. The reversal of 972767407 is 704767279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704767279 = 1597 ⋅441307.

It is a cyclic number.

It is not a de Polignac number, because 972767407 - 2¹⁹ = 972243119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972767401) 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, 13145469 + ... + 13145542.

It is an arithmetic number, because the mean of its divisors is an integer number (249764614).

Almost surely, 2^972767407 is an apocalyptic number.

972767407 is a deficient number, since it is larger than the sum of its proper divisors (26291049).

972767407 is a wasteful number, since it uses less digits than its factorization.

972767407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26291048.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The square root of 972767407 is about 31189.2194035054. The cubic root of 972767407 is about 990.8387976644.

The spelling of 972767407 in words is "nine hundred seventy-two million, seven hundred sixty-seven thousand, four hundred seven".