972550749 has 16 divisors (see below), whose sum is σ = 1336795200. Its totient is φ = 628638336.

The previous prime is 972550741. The next prime is 972550769. The reversal of 972550749 is 947055279.

It is not a de Polignac number, because 972550749 - 2³ = 972550741 is a prime.

It is a super-2 number, since 2×972550749² = 1891709918760922002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 972550698 and 972550707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972550741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24714 + ... + 50555.

It is an arithmetic number, because the mean of its divisors is an integer number (83549700).

Almost surely, 2^972550749 is an apocalyptic number.

It is an amenable number.

972550749 is a deficient number, since it is larger than the sum of its proper divisors (364244451).

972550749 is a wasteful number, since it uses less digits than its factorization.

972550749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75404.

The product of its (nonzero) digits is 793800, while the sum is 48.

The square root of 972550749 is about 31185.7459266249. The cubic root of 972550749 is about 990.7652312290.

The spelling of 972550749 in words is "nine hundred seventy-two million, five hundred fifty thousand, seven hundred forty-nine".