846478829 has 4 divisors (see below), whose sum is σ = 967404384. Its totient is φ = 725553276.

The previous prime is 846478811. The next prime is 846478877. The reversal of 846478829 is 928874648.

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 846478829 - 2⁸ = 846478573 is a prime.

It is a super-2 number, since 2×846478829² = 1433052815890422482, 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 (846478889) 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, 60462767 + ... + 60462780.

It is an arithmetic number, because the mean of its divisors is an integer number (241851096).

Almost surely, 2^846478829 is an apocalyptic number.

It is an amenable number.

846478829 is a deficient number, since it is larger than the sum of its proper divisors (120925555).

846478829 is a wasteful number, since it uses less digits than its factorization.

846478829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120925554.

The product of its digits is 6193152, while the sum is 56.

The square root of 846478829 is about 29094.3092201894. The cubic root of 846478829 is about 945.9583901679.

The spelling of 846478829 in words is "eight hundred forty-six million, four hundred seventy-eight thousand, eight hundred twenty-nine".