400671707 has 8 divisors (see below), whose sum is σ = 421147296. Its totient is φ = 380450752.

The previous prime is 400671697. The next prime is 400671709. The reversal of 400671707 is 707176004.

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 400671707 - 2¹⁴ = 400655323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400671709) 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, 60428 + ... + 66729.

It is an arithmetic number, because the mean of its divisors is an integer number (52643412).

Almost surely, 2^400671707 is an apocalyptic number.

400671707 is a deficient number, since it is larger than the sum of its proper divisors (20475589).

400671707 is a wasteful number, since it uses less digits than its factorization.

400671707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127317.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 400671707 is about 20016.7856310647. The cubic root of 400671707 is about 737.2185007065.

The spelling of 400671707 in words is "four hundred million, six hundred seventy-one thousand, seven hundred seven".