76626161 has 4 divisors (see below), whose sum is σ = 76819572. Its totient is φ = 76432752.

The previous prime is 76626139. The next prime is 76626167. The reversal of 76626161 is 16162667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16162667 = 89 ⋅181603.

It can be written as a sum of positive squares in 2 ways, for example, as 35473936 + 41152225 = 5956^2 + 6415^2 .

It is a cyclic number.

It is not a de Polignac number, because 76626161 - 2⁶ = 76626097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76626167) 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, 96110 + ... + 96903.

It is an arithmetic number, because the mean of its divisors is an integer number (19204893).

Almost surely, 2^76626161 is an apocalyptic number.

It is an amenable number.

76626161 is a deficient number, since it is larger than the sum of its proper divisors (193411).

76626161 is a wasteful number, since it uses less digits than its factorization.

76626161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193410.

The product of its digits is 18144, while the sum is 35.

The square root of 76626161 is about 8753.6370155496. The cubic root of 76626161 is about 424.7424709713.

The spelling of 76626161 in words is "seventy-six million, six hundred twenty-six thousand, one hundred sixty-one".