90470297 has 4 divisors (see below), whose sum is σ = 90489360. Its totient is φ = 90451236.

The previous prime is 90470269. The next prime is 90470309. The reversal of 90470297 is 79207409.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90470297 - 2¹⁶ = 90404761 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 90470297.

It is not an unprimeable number, because it can be changed into a prime (90470797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3854 + ... + 13992.

It is an arithmetic number, because the mean of its divisors is an integer number (22622340).

Almost surely, 2^90470297 is an apocalyptic number.

It is an amenable number.

90470297 is a deficient number, since it is larger than the sum of its proper divisors (19063).

90470297 is a wasteful number, since it uses less digits than its factorization.

90470297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19062.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 90470297 is about 9511.5875120823. The cubic root of 90470297 is about 448.9197082632.

The spelling of 90470297 in words is "ninety million, four hundred seventy thousand, two hundred ninety-seven".