46639791 has 24 divisors (see below), whose sum is σ = 76692096. Its totient is φ = 27036240.

The previous prime is 46639787. The next prime is 46639811. The reversal of 46639791 is 19793664.

46639791 is a `hidden beast` number, since 4 + 6 + 639 + 7 + 9 + 1 = 666.

It is not a de Polignac number, because 46639791 - 2² = 46639787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46639711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7965 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (3195504).

Almost surely, 2^46639791 is an apocalyptic number.

46639791 is a deficient number, since it is larger than the sum of its proper divisors (30052305).

46639791 is a wasteful number, since it uses less digits than its factorization.

46639791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20523 (or 20520 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 46639791 is about 6829.3331299623. Note that the first 3 decimals coincide. The cubic root of 46639791 is about 359.9583053564.

The spelling of 46639791 in words is "forty-six million, six hundred thirty-nine thousand, seven hundred ninety-one".