90546905 has 4 divisors (see below), whose sum is σ = 108656292. Its totient is φ = 72437520.

The previous prime is 90546893. The next prime is 90546917. The reversal of 90546905 is 50964509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50964509 = 379 ⋅134471.

It is an interprime number because it is at equal distance from previous prime (90546893) and next prime (90546917).

It can be written as a sum of positive squares in 2 ways, for example, as 71301136 + 19245769 = 8444^2 + 4387^2 .

It is not a de Polignac number, because 90546905 - 2⁸ = 90546649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9054686 + ... + 9054695.

It is an arithmetic number, because the mean of its divisors is an integer number (27164073).

Almost surely, 2^90546905 is an apocalyptic number.

It is an amenable number.

90546905 is a deficient number, since it is larger than the sum of its proper divisors (18109387).

90546905 is a wasteful number, since it uses less digits than its factorization.

90546905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18109386.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 90546905 is about 9515.6137479408. The cubic root of 90546905 is about 449.0463838669.

The spelling of 90546905 in words is "ninety million, five hundred forty-six thousand, nine hundred five".