79766949 has 4 divisors (see below), whose sum is σ = 106355936. Its totient is φ = 53177964.

The previous prime is 79766933. The next prime is 79766969. The reversal of 79766949 is 94966797.

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: 94966797 = 3 ⋅31655599.

It is not a de Polignac number, because 79766949 - 2⁴ = 79766933 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 (79766909) 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, 13294489 + ... + 13294494.

It is an arithmetic number, because the mean of its divisors is an integer number (26588984).

Almost surely, 2^79766949 is an apocalyptic number.

It is an amenable number.

79766949 is a deficient number, since it is larger than the sum of its proper divisors (26588987).

79766949 is a wasteful number, since it uses less digits than its factorization.

79766949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26588986.

The product of its digits is 5143824, while the sum is 57.

The square root of 79766949 is about 8931.2344611481. The cubic root of 79766949 is about 430.4681200855.

The spelling of 79766949 in words is "seventy-nine million, seven hundred sixty-six thousand, nine hundred forty-nine".