667431470 has 16 divisors (see below), whose sum is σ = 1214876880. Its totient is φ = 263972544.

The previous prime is 667431461. The next prime is 667431511. The reversal of 667431470 is 74134766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374072 + ... + 375851.

It is an arithmetic number, because the mean of its divisors is an integer number (75929805).

Almost surely, 2^667431470 is an apocalyptic number.

667431470 is a deficient number, since it is larger than the sum of its proper divisors (547445410).

667431470 is a wasteful number, since it uses less digits than its factorization.

667431470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750019.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 667431470 is about 25834.6950823887. The cubic root of 667431470 is about 873.9143956988.

The spelling of 667431470 in words is "six hundred sixty-seven million, four hundred thirty-one thousand, four hundred seventy".