90567613 has 2 divisors, whose sum is σ = 90567614. Its totient is φ = 90567612.

The previous prime is 90567569. The next prime is 90567649. The reversal of 90567613 is 31676509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 4782969 = 9262^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 90567613 - 2¹³ = 90559421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90567683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45283806 + 45283807.

It is an arithmetic number, because the mean of its divisors is an integer number (45283807).

Almost surely, 2^90567613 is an apocalyptic number.

It is an amenable number.

90567613 is a deficient number, since it is larger than the sum of its proper divisors (1).

90567613 is an equidigital number, since it uses as much as digits as its factorization.

90567613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 90567613 is about 9516.7017921126. The cubic root of 90567613 is about 449.0806134327.

The spelling of 90567613 in words is "ninety million, five hundred sixty-seven thousand, six hundred thirteen".