90007097 has 4 divisors (see below), whose sum is σ = 93110820. Its totient is φ = 86903376.

The previous prime is 90007079. The next prime is 90007111. The reversal of 90007097 is 79070009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79070009 = 17 ⋅4651177.

It can be written as a sum of positive squares in 2 ways, for example, as 42823936 + 47183161 = 6544^2 + 6869^2 .

It is a cyclic number.

It is not a de Polignac number, because 90007097 - 2⁶ = 90007033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90007597) 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, 1551818 + ... + 1551875.

It is an arithmetic number, because the mean of its divisors is an integer number (23277705).

Almost surely, 2^90007097 is an apocalyptic number.

It is an amenable number.

90007097 is a deficient number, since it is larger than the sum of its proper divisors (3103723).

90007097 is a wasteful number, since it uses less digits than its factorization.

90007097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103722.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 90007097 is about 9487.2070178741. The cubic root of 90007097 is about 448.1522538015.

The spelling of 90007097 in words is "ninety million, seven thousand, ninety-seven".