79797150 has 240 divisors, whose sum is σ = 251166960. Its totient is φ = 18662400.

The previous prime is 79797119. The next prime is 79797163. The reversal of 79797150 is 5179797.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79797096 and 79797105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1308120 + ... + 1308180.

It is an arithmetic number, because the mean of its divisors is an integer number (1046529).

Almost surely, 2^79797150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79797150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125583480).

79797150 is an abundant number, since it is smaller than the sum of its proper divisors (171369810).

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

79797150 is a wasteful number, since it uses less digits than its factorization.

79797150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The square root of 79797150 is about 8932.9250528592. The cubic root of 79797150 is about 430.5224405255.

It can be divided in two parts, 7979 and 7150, that added together give a square (15129 = 123²).

The spelling of 79797150 in words is "seventy-nine million, seven hundred ninety-seven thousand, one hundred fifty".