79770450 has 48 divisors (see below), whose sum is σ = 198398016. Its totient is φ = 21211200.

The previous prime is 79770437. The next prime is 79770479. The reversal of 79770450 is 5407797.

It is a junction number, because it is equal to n+sod(n) for n = 79770399 and 79770408.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 80659 + ... + 81641.

It is an arithmetic number, because the mean of its divisors is an integer number (4133292).

Almost surely, 2^79770450 is an apocalyptic number.

79770450 is an abundant number, since it is smaller than the sum of its proper divisors (118627566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79770450 is a wasteful number, since it uses less digits than its factorization.

79770450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 79770450 is about 8931.4304565394. The cubic root of 79770450 is about 430.4744177935.

The spelling of 79770450 in words is "seventy-nine million, seven hundred seventy thousand, four hundred fifty".