90452777 has 2 divisors, whose sum is σ = 90452778. Its totient is φ = 90452776.

The previous prime is 90452741. The next prime is 90452797. The reversal of 90452777 is 77725409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89567296 + 885481 = 9464^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 90452777 - 2¹² = 90448681 is a prime.

It is a Chen prime.

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, 45226388 + 45226389.

It is an arithmetic number, because the mean of its divisors is an integer number (45226389).

Almost surely, 2^90452777 is an apocalyptic number.

It is an amenable number.

90452777 is a deficient number, since it is larger than the sum of its proper divisors (1).

90452777 is an equidigital number, since it uses as much as digits as its factorization.

90452777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 90452777 is about 9510.6664855834. Note that the first 3 decimals coincide. The cubic root of 90452777 is about 448.8907279190.

The spelling of 90452777 in words is "ninety million, four hundred fifty-two thousand, seven hundred seventy-seven".