990754 has 4 divisors (see below), whose sum is σ = 1486134. Its totient is φ = 495376.

The previous prime is 990733. The next prime is 990761. The reversal of 990754 is 457099.

990754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 990025 + 729 = 995^2 + 27^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247687 + ... + 247690.

2⁹⁹⁰⁷⁵⁴ is an apocalyptic number.

990754 is a deficient number, since it is larger than the sum of its proper divisors (495380).

990754 is a wasteful number, since it uses less digits than its factorization.

990754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495379.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 990754 is about 995.3662642465. The cubic root of 990754 is about 99.6908452181.

The spelling of 990754 in words is "nine hundred ninety thousand, seven hundred fifty-four".