846809386 has 4 divisors (see below), whose sum is σ = 1270214082. Its totient is φ = 423404692.

The previous prime is 846809371. The next prime is 846809393. The reversal of 846809386 is 683908648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 531072025 + 315737361 = 23045^2 + 17769^2 .

It is a super-2 number, since 2×846809386² = 1434172272435393992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211702345 + ... + 211702348.

Almost surely, 2^846809386 is an apocalyptic number.

846809386 is a deficient number, since it is larger than the sum of its proper divisors (423404696).

846809386 is a wasteful number, since it uses less digits than its factorization.

846809386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423404695.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 846809386 is about 29099.9894501699. The cubic root of 846809386 is about 946.0815090074.

The spelling of 846809386 in words is "eight hundred forty-six million, eight hundred nine thousand, three hundred eighty-six".