76662961 has 4 divisors (see below), whose sum is σ = 76782832. Its totient is φ = 76543092.

The previous prime is 76662931. The next prime is 76662977. The reversal of 76662961 is 16926667.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16926667 = 1109 ⋅15263.

It is a cyclic number.

It is not a de Polignac number, because 76662961 - 2⁹ = 76662449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76662931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58971 + ... + 60256.

It is an arithmetic number, because the mean of its divisors is an integer number (19195708).

Almost surely, 2^76662961 is an apocalyptic number.

It is an amenable number.

76662961 is a deficient number, since it is larger than the sum of its proper divisors (119871).

76662961 is a wasteful number, since it uses less digits than its factorization.

76662961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119870.

The product of its digits is 163296, while the sum is 43.

The square root of 76662961 is about 8755.7387466735. The cubic root of 76662961 is about 424.8104548086.

The spelling of 76662961 in words is "seventy-six million, six hundred sixty-two thousand, nine hundred sixty-one".