97399554 has 48 divisors (see below), whose sum is σ = 230360256. Its totient is φ = 27367200.

The previous prime is 97399537. The next prime is 97399591. The reversal of 97399554 is 45599379.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 97399497 and 97399506.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15219 + ... + 20649.

It is an arithmetic number, because the mean of its divisors is an integer number (4799172).

Almost surely, 2^97399554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97399554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115180128).

97399554 is an abundant number, since it is smaller than the sum of its proper divisors (132960702).

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

97399554 is a wasteful number, since it uses less digits than its factorization.

97399554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511 (or 5504 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 51.

The square root of 97399554 is about 9869.1212374760. The cubic root of 97399554 is about 460.1000947902.

The spelling of 97399554 in words is "ninety-seven million, three hundred ninety-nine thousand, five hundred fifty-four".