90452737 has 2 divisors, whose sum is σ = 90452738. Its totient is φ = 90452736.

The previous prime is 90452729. The next prime is 90452741. The reversal of 90452737 is 73725409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88811776 + 1640961 = 9424^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 90452737 - 2³ = 90452729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90452696 and 90452705.

It is not a weakly prime, because it can be changed into another prime (90452717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45226368 + 45226369.

It is an arithmetic number, because the mean of its divisors is an integer number (45226369).

Almost surely, 2^90452737 is an apocalyptic number.

It is an amenable number.

90452737 is a deficient number, since it is larger than the sum of its proper divisors (1).

90452737 is an equidigital number, since it uses as much as digits as its factorization.

90452737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 90452737 is about 9510.6643826812. The cubic root of 90452737 is about 448.8906617496.

The spelling of 90452737 in words is "ninety million, four hundred fifty-two thousand, seven hundred thirty-seven".