895249021 has 4 divisors (see below), whose sum is σ = 895319200. Its totient is φ = 895178844.

The previous prime is 895249013. The next prime is 895249027. The reversal of 895249021 is 120942598.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 895249021 - 2³ = 895249013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (895249027) 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, 9951 + ... + 43468.

It is an arithmetic number, because the mean of its divisors is an integer number (223829800).

Almost surely, 2^895249021 is an apocalyptic number.

It is an amenable number.

895249021 is a deficient number, since it is larger than the sum of its proper divisors (70179).

895249021 is a wasteful number, since it uses less digits than its factorization.

895249021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70178.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 895249021 is about 29920.7122408542. The cubic root of 895249021 is about 963.7874901738.

The spelling of 895249021 in words is "eight hundred ninety-five million, two hundred forty-nine thousand, twenty-one".