878783097 has 4 divisors (see below), whose sum is σ = 1171710800. Its totient is φ = 585855396.

The previous prime is 878783093. The next prime is 878783161. The reversal of 878783097 is 790387878.

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 878783097 - 2² = 878783093 is a prime.

It is a super-2 number, since 2×878783097² = 1544519463145822818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878783093) 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, 146463847 + ... + 146463852.

It is an arithmetic number, because the mean of its divisors is an integer number (292927700).

Almost surely, 2^878783097 is an apocalyptic number.

It is an amenable number.

878783097 is a deficient number, since it is larger than the sum of its proper divisors (292927703).

878783097 is a wasteful number, since it uses less digits than its factorization.

878783097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292927702.

The product of its (nonzero) digits is 4741632, while the sum is 57.

The square root of 878783097 is about 29644.2759567509. The cubic root of 878783097 is about 957.8420484647.

The spelling of 878783097 in words is "eight hundred seventy-eight million, seven hundred eighty-three thousand, ninety-seven".