97090539 has 16 divisors (see below), whose sum is σ = 159328512. Its totient is φ = 51212448.

The previous prime is 97090537. The next prime is 97090561. The reversal of 97090539 is 93509079.

It is a happy number.

It is not a de Polignac number, because 97090539 - 2¹ = 97090537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97090539.

It is not an unprimeable number, because it can be changed into a prime (97090537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177549 + ... + 178094.

It is an arithmetic number, because the mean of its divisors is an integer number (9958032).

Almost surely, 2^97090539 is an apocalyptic number.

97090539 is a deficient number, since it is larger than the sum of its proper divisors (62237973).

97090539 is a wasteful number, since it uses less digits than its factorization.

97090539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355666.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 97090539 is about 9853.4531510532. The cubic root of 97090539 is about 459.6129999633.

The spelling of 97090539 in words is "ninety-seven million, ninety thousand, five hundred thirty-nine".