90292946 has 4 divisors (see below), whose sum is σ = 135439422. Its totient is φ = 45146472.

The previous prime is 90292919. The next prime is 90292949. The reversal of 90292946 is 64929209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 37075921 = 7295^2 + 6089^2 .

It is not an unprimeable number, because it can be changed into a prime (90292949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22573235 + ... + 22573238.

Almost surely, 2^90292946 is an apocalyptic number.

90292946 is a deficient number, since it is larger than the sum of its proper divisors (45146476).

90292946 is a wasteful number, since it uses less digits than its factorization.

90292946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45146475.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 90292946 is about 9502.2600469573. The cubic root of 90292946 is about 448.6261738357.

The spelling of 90292946 in words is "ninety million, two hundred ninety-two thousand, nine hundred forty-six".