97138799 has 8 divisors (see below), whose sum is σ = 105362208. Its totient is φ = 89194240.

The previous prime is 97138781. The next prime is 97138813. The reversal of 97138799 is 99783179.

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

It is not a de Polignac number, because 97138799 - 2¹² = 97134703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97138799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97138739) 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, 68987 + ... + 70380.

It is an arithmetic number, because the mean of its divisors is an integer number (13170276).

Almost surely, 2^97138799 is an apocalyptic number.

97138799 is a deficient number, since it is larger than the sum of its proper divisors (8223409).

97138799 is a wasteful number, since it uses less digits than its factorization.

97138799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139425.

The product of its digits is 857304, while the sum is 53.

The square root of 97138799 is about 9855.9017344939. The cubic root of 97138799 is about 459.6891393741.

The spelling of 97138799 in words is "ninety-seven million, one hundred thirty-eight thousand, seven hundred ninety-nine".