995020397 has 4 divisors (see below), whose sum is σ = 1137166176. Its totient is φ = 852874620.

The previous prime is 995020393. The next prime is 995020447. The reversal of 995020397 is 793020599.

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 an emirpimes, since its reverse is a distinct semiprime: 793020599 = 7 ⋅113288657.

It is a cyclic number.

It is not a de Polignac number, because 995020397 - 2² = 995020393 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 (995020393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71072879 + ... + 71072892.

It is an arithmetic number, because the mean of its divisors is an integer number (284291544).

Almost surely, 2^995020397 is an apocalyptic number.

It is an amenable number.

995020397 is a deficient number, since it is larger than the sum of its proper divisors (142145779).

995020397 is a wasteful number, since it uses less digits than its factorization.

995020397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142145778.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 995020397 is about 31543.9439037036. The cubic root of 995020397 is about 998.3373695253.

The spelling of 995020397 in words is "nine hundred ninety-five million, twenty thousand, three hundred ninety-seven".