90461477 has 2 divisors, whose sum is σ = 90461478. Its totient is φ = 90461476.

The previous prime is 90461473. The next prime is 90461491. The reversal of 90461477 is 77416409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80532676 + 9928801 = 8974^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 90461477 - 2² = 90461473 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90461477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90461473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45230738 + 45230739.

It is an arithmetic number, because the mean of its divisors is an integer number (45230739).

Almost surely, 2^90461477 is an apocalyptic number.

It is an amenable number.

90461477 is a deficient number, since it is larger than the sum of its proper divisors (1).

90461477 is an equidigital number, since it uses as much as digits as its factorization.

90461477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 90461477 is about 9511.1238557807. The cubic root of 90461477 is about 448.9051193111.

The spelling of 90461477 in words is "ninety million, four hundred sixty-one thousand, four hundred seventy-seven".