995874781 has 4 divisors (see below), whose sum is σ = 1086408864. Its totient is φ = 905340700.

The previous prime is 995874779. The next prime is 995874791. The reversal of 995874781 is 187478599.

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 not a de Polignac number, because 995874781 - 2¹ = 995874779 is a prime.

It is a super-2 number, since 2×995874781² = 1983533158863595922, 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 (995874701) 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, 45267025 + ... + 45267046.

It is an arithmetic number, because the mean of its divisors is an integer number (271602216).

Almost surely, 2^995874781 is an apocalyptic number.

It is an amenable number.

995874781 is a deficient number, since it is larger than the sum of its proper divisors (90534083).

995874781 is a wasteful number, since it uses less digits than its factorization.

995874781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90534082.

The product of its digits is 5080320, while the sum is 58.

The square root of 995874781 is about 31557.4837558383. The cubic root of 995874781 is about 998.6230318289.

The spelling of 995874781 in words is "nine hundred ninety-five million, eight hundred seventy-four thousand, seven hundred eighty-one".