80515379 has 6 divisors (see below), whose sum is σ = 93660804. Its totient is φ = 69013140.

The previous prime is 80515361. The next prime is 80515403. The reversal of 80515379 is 97351508.

It is not a de Polignac number, because 80515379 - 2¹⁶ = 80449843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80515319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821537 + ... + 821634.

It is an arithmetic number, because the mean of its divisors is an integer number (15610134).

Almost surely, 2^80515379 is an apocalyptic number.

80515379 is a deficient number, since it is larger than the sum of its proper divisors (13145425).

80515379 is a wasteful number, since it uses less digits than its factorization.

80515379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643185 (or 1643178 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 80515379 is about 8973.0362196973. The cubic root of 80515379 is about 431.8102501006.

The spelling of 80515379 in words is "eighty million, five hundred fifteen thousand, three hundred seventy-nine".