97450290 has 192 divisors, whose sum is σ = 318898944. Its totient is φ = 20901888.

The previous prime is 97450271. The next prime is 97450337. The reversal of 97450290 is 9205479.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 289002 + ... + 289338.

It is an arithmetic number, because the mean of its divisors is an integer number (1660932).

Almost surely, 2^97450290 is an apocalyptic number.

97450290 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 97450290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159449472).

97450290 is an abundant number, since it is smaller than the sum of its proper divisors (221448654).

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

97450290 is a wasteful number, since it uses less digits than its factorization.

97450290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 97450290 is about 9871.6913444455. The cubic root of 97450290 is about 460.1799705369.

The spelling of 97450290 in words is "ninety-seven million, four hundred fifty thousand, two hundred ninety".