846991705 has 12 divisors (see below), whose sum is σ = 1182331620. Its totient is φ = 580794144.

The previous prime is 846991699. The next prime is 846991723. The reversal of 846991705 is 507199648.

It can be written as a sum of positive squares in 2 ways, for example, as 463928521 + 383063184 = 21539^2 + 19572^2 .

It is not a de Polignac number, because 846991705 - 2⁷ = 846991577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1728310 + ... + 1728799.

It is an arithmetic number, because the mean of its divisors is an integer number (98527635).

Almost surely, 2^846991705 is an apocalyptic number.

It is an amenable number.

846991705 is a deficient number, since it is larger than the sum of its proper divisors (335339915).

846991705 is a wasteful number, since it uses less digits than its factorization.

846991705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457128 (or 3457121 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 846991705 is about 29103.1219115751. The cubic root of 846991705 is about 946.1494016012.

The spelling of 846991705 in words is "eight hundred forty-six million, nine hundred ninety-one thousand, seven hundred five".