425197893 has 4 divisors (see below), whose sum is σ = 566930528. Its totient is φ = 283465260.

The previous prime is 425197841. The next prime is 425197901. The reversal of 425197893 is 398791524.

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 de Polignac number, because none of the positive numbers 2^k-425197893 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 (425197823) 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, 70866313 + ... + 70866318.

It is an arithmetic number, because the mean of its divisors is an integer number (141732632).

Almost surely, 2^425197893 is an apocalyptic number.

It is an amenable number.

425197893 is a deficient number, since it is larger than the sum of its proper divisors (141732635).

425197893 is a wasteful number, since it uses less digits than its factorization.

425197893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141732634.

The product of its digits is 544320, while the sum is 48.

The square root of 425197893 is about 20620.3271797515. The cubic root of 425197893 is about 751.9639743616.

The spelling of 425197893 in words is "four hundred twenty-five million, one hundred ninety-seven thousand, eight hundred ninety-three".