79801955 has 8 divisors (see below), whose sum is σ = 95948592. Its totient is φ = 63717408.

The previous prime is 79801951. The next prime is 79801963. The reversal of 79801955 is 55910897.

It is a happy number.

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 79801955 - 2² = 79801951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79801951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12644 + ... + 17873.

It is an arithmetic number, because the mean of its divisors is an integer number (11993574).

Almost surely, 2^79801955 is an apocalyptic number.

79801955 is a deficient number, since it is larger than the sum of its proper divisors (16146637).

79801955 is a wasteful number, since it uses less digits than its factorization.

79801955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31045.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 79801955 is about 8933.1939976696. The cubic root of 79801955 is about 430.5310816813.

The spelling of 79801955 in words is "seventy-nine million, eight hundred one thousand, nine hundred fifty-five".