400666703 has 8 divisors (see below), whose sum is σ = 407062656. Its totient is φ = 394291800.

The previous prime is 400666691. The next prime is 400666711. The reversal of 400666703 is 307666004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400666703 - 2⁸ = 400666447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400666703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400666753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35600 + ... + 45482.

It is an arithmetic number, because the mean of its divisors is an integer number (50882832).

Almost surely, 2^400666703 is an apocalyptic number.

400666703 is a deficient number, since it is larger than the sum of its proper divisors (6395953).

400666703 is an equidigital number, since it uses as much as digits as its factorization.

400666703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 400666703 is about 20016.6606355806. The cubic root of 400666703 is about 737.2154316463.

The spelling of 400666703 in words is "four hundred million, six hundred sixty-six thousand, seven hundred three".