669463293 has 12 divisors (see below), whose sum is σ = 914926784. Its totient is φ = 435420000.

The previous prime is 669463261. The next prime is 669463307. The reversal of 669463293 is 392364966.

It is not a de Polignac number, because 669463293 - 2⁵ = 669463261 is a prime.

It is a super-2 number, since 2×669463293² = 896362201348807698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669463243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61333 + ... + 71418.

Almost surely, 2^669463293 is an apocalyptic number.

It is an amenable number.

669463293 is a deficient number, since it is larger than the sum of its proper divisors (245463491).

669463293 is a wasteful number, since it uses less digits than its factorization.

669463293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132836 (or 132795 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 48.

The square root of 669463293 is about 25873.9887338617. The cubic root of 669463293 is about 874.8002996778.

The spelling of 669463293 in words is "six hundred sixty-nine million, four hundred sixty-three thousand, two hundred ninety-three".