900923801 has 4 divisors (see below), whose sum is σ = 908896692. Its totient is φ = 892950912.

The previous prime is 900923753. The next prime is 900923809. The reversal of 900923801 is 108329009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108329009 = 131 ⋅826939.

It can be written as a sum of positive squares in 2 ways, for example, as 228040201 + 672883600 = 15101^2 + 25940^2 .

It is a cyclic number.

It is not a de Polignac number, because 900923801 - 2¹⁰ = 900922777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900923809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3986276 + ... + 3986501.

It is an arithmetic number, because the mean of its divisors is an integer number (227224173).

Almost surely, 2^900923801 is an apocalyptic number.

It is an amenable number.

900923801 is a deficient number, since it is larger than the sum of its proper divisors (7972891).

900923801 is a wasteful number, since it uses less digits than its factorization.

900923801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972890.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 900923801 is about 30015.3927343955. The cubic root of 900923801 is about 965.8196124070.

The spelling of 900923801 in words is "nine hundred million, nine hundred twenty-three thousand, eight hundred one".