90951473 has 2 divisors, whose sum is σ = 90951474. Its totient is φ = 90951472.

The previous prime is 90951467. The next prime is 90951517. The reversal of 90951473 is 37415909.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57577744 + 33373729 = 7588^2 + 5777^2 .

It is a cyclic number.

It is not a de Polignac number, because 90951473 - 2⁴ = 90951457 is a prime.

It is not a weakly prime, because it can be changed into another prime (90951403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45475736 + 45475737.

It is an arithmetic number, because the mean of its divisors is an integer number (45475737).

Almost surely, 2^90951473 is an apocalyptic number.

It is an amenable number.

90951473 is a deficient number, since it is larger than the sum of its proper divisors (1).

90951473 is an equidigital number, since it uses as much as digits as its factorization.

90951473 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 38.

The square root of 90951473 is about 9536.8481690756. The cubic root of 90951473 is about 449.7141773426.

The spelling of 90951473 in words is "ninety million, nine hundred fifty-one thousand, four hundred seventy-three".