400594897 has 4 divisors (see below), whose sum is σ = 401203440. Its totient is φ = 399986356.

The previous prime is 400594889. The next prime is 400594937. The reversal of 400594897 is 798495004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400594897 - 2³ = 400594889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400594807) 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, 303283 + ... + 304600.

It is an arithmetic number, because the mean of its divisors is an integer number (100300860).

Almost surely, 2^400594897 is an apocalyptic number.

It is an amenable number.

400594897 is a deficient number, since it is larger than the sum of its proper divisors (608543).

400594897 is an equidigital number, since it uses as much as digits as its factorization.

400594897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608542.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 400594897 is about 20014.8668993826. The cubic root of 400594897 is about 737.1713886770.

The spelling of 400594897 in words is "four hundred million, five hundred ninety-four thousand, eight hundred ninety-seven".