815342079 has 8 divisors (see below), whose sum is σ = 1144339840. Its totient is φ = 514952856.

The previous prime is 815342071. The next prime is 815342107. The reversal of 815342079 is 970243518.

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

It is not a de Polignac number, because 815342079 - 2³ = 815342071 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 (815342071) 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, 7152067 + ... + 7152180.

It is an arithmetic number, because the mean of its divisors is an integer number (143042480).

Almost surely, 2^815342079 is an apocalyptic number.

815342079 is a deficient number, since it is larger than the sum of its proper divisors (328997761).

815342079 is a wasteful number, since it uses less digits than its factorization.

815342079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14304269.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 815342079 is about 28554.1954710687. The cubic root of 815342079 is about 934.2145324578.

The spelling of 815342079 in words is "eight hundred fifteen million, three hundred forty-two thousand, seventy-nine".