401967589 has 4 divisors (see below), whose sum is σ = 406810656. Its totient is φ = 397124524.

The previous prime is 401967583. The next prime is 401967611. The reversal of 401967589 is 985769104.

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 401967589 - 2⁵ = 401967557 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401967583) 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, 2421409 + ... + 2421574.

It is an arithmetic number, because the mean of its divisors is an integer number (101702664).

Almost surely, 2^401967589 is an apocalyptic number.

It is an amenable number.

401967589 is a deficient number, since it is larger than the sum of its proper divisors (4843067).

401967589 is an equidigital number, since it uses as much as digits as its factorization.

401967589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843066.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 401967589 is about 20049.1293825941. The cubic root of 401967589 is about 738.0124342125.

The spelling of 401967589 in words is "four hundred one million, nine hundred sixty-seven thousand, five hundred eighty-nine".