79166957 has 8 divisors (see below), whose sum is σ = 80019576. Its totient is φ = 78318592.

The previous prime is 79166953. The next prime is 79166987. The reversal of 79166957 is 75966197.

It can be written as a sum of positive squares in 4 ways, for example, as 561001 + 78605956 = 749^2 + 8866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79166957 - 2² = 79166953 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 (79166951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47543 + ... + 49179.

It is an arithmetic number, because the mean of its divisors is an integer number (10002447).

Almost surely, 2^79166957 is an apocalyptic number.

It is an amenable number.

79166957 is a deficient number, since it is larger than the sum of its proper divisors (852619).

79166957 is a wasteful number, since it uses less digits than its factorization.

79166957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127.

The product of its digits is 714420, while the sum is 50.

The square root of 79166957 is about 8897.5815253360. The cubic root of 79166957 is about 429.3861025219.

The spelling of 79166957 in words is "seventy-nine million, one hundred sixty-six thousand, nine hundred fifty-seven".