894531431 has 4 divisors (see below), whose sum is σ = 895568832. Its totient is φ = 893494032.

The previous prime is 894531427. The next prime is 894531439. The reversal of 894531431 is 134135498.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 894531431 - 2² = 894531427 is a prime.

It is a super-2 number, since 2×894531431² = 1600372962093815522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894531439) 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, 517406 + ... + 519131.

It is an arithmetic number, because the mean of its divisors is an integer number (223892208).

Almost surely, 2^894531431 is an apocalyptic number.

894531431 is a deficient number, since it is larger than the sum of its proper divisors (1037401).

894531431 is a wasteful number, since it uses less digits than its factorization.

894531431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037400.

The product of its digits is 51840, while the sum is 38.

The square root of 894531431 is about 29908.7183108872. The cubic root of 894531431 is about 963.5299122571.

The spelling of 894531431 in words is "eight hundred ninety-four million, five hundred thirty-one thousand, four hundred thirty-one".