976641969 has 4 divisors (see below), whose sum is σ = 1302189296. Its totient is φ = 651094644.

The previous prime is 976641931. The next prime is 976642013. The reversal of 976641969 is 969146679.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 976641969 - 2¹⁷ = 976510897 is a prime.

It is a super-2 number, since 2×976641969² = 1907659071224393922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (976641269) 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, 162773659 + ... + 162773664.

It is an arithmetic number, because the mean of its divisors is an integer number (325547324).

Almost surely, 2^976641969 is an apocalyptic number.

It is an amenable number.

976641969 is a deficient number, since it is larger than the sum of its proper divisors (325547327).

976641969 is a wasteful number, since it uses less digits than its factorization.

976641969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325547326.

The product of its digits is 4408992, while the sum is 57.

The square root of 976641969 is about 31251.2714781335. The cubic root of 976641969 is about 992.1525685740.

The spelling of 976641969 in words is "nine hundred seventy-six million, six hundred forty-one thousand, nine hundred sixty-nine".