46991729 has 4 divisors (see below), whose sum is σ = 47026176. Its totient is φ = 46957284.

The previous prime is 46991719. The next prime is 46991741. The reversal of 46991729 is 92719964.

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 a cyclic number.

It is not a de Polignac number, because 46991729 - 2²⁰ = 45943153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46991719) 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, 15089 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (11756544).

Almost surely, 2^46991729 is an apocalyptic number.

It is an amenable number.

46991729 is a deficient number, since it is larger than the sum of its proper divisors (34447).

46991729 is a wasteful number, since it uses less digits than its factorization.

46991729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34446.

The product of its digits is 244944, while the sum is 47.

The square root of 46991729 is about 6855.0513491877. The cubic root of 46991729 is about 360.8614375518.

The spelling of 46991729 in words is "forty-six million, nine hundred ninety-one thousand, seven hundred twenty-nine".