90457802 has 4 divisors (see below), whose sum is σ = 135686706. Its totient is φ = 45228900.

The previous prime is 90457789. The next prime is 90457811. The reversal of 90457802 is 20875409.

It is a happy number.

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., 72573361 + 17884441 = 8519^2 + 4229^2 .

It is a super-2 number, since 2×90457802² = 16365227885342408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22614449 + ... + 22614452.

Almost surely, 2^90457802 is an apocalyptic number.

90457802 is a deficient number, since it is larger than the sum of its proper divisors (45228904).

90457802 is a wasteful number, since it uses less digits than its factorization.

90457802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45228903.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 90457802 is about 9510.9306589839. The cubic root of 90457802 is about 448.8990403011.

The spelling of 90457802 in words is "ninety million, four hundred fifty-seven thousand, eight hundred two".