56343729 has 24 divisors (see below), whose sum is σ = 85960000. Its totient is φ = 32626944.

The previous prime is 56343701. The next prime is 56343731. The reversal of 56343729 is 92734365.

It is not a de Polignac number, because 56343729 - 2⁵ = 56343697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56343779) 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, 8772 + ... + 13770.

Almost surely, 2^56343729 is an apocalyptic number.

It is an amenable number.

56343729 is a deficient number, since it is larger than the sum of its proper divisors (29616271).

56343729 is a wasteful number, since it uses less digits than its factorization.

56343729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5032 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 56343729 is about 7506.2459991663. The cubic root of 56343729 is about 383.3674141512.

The spelling of 56343729 in words is "fifty-six million, three hundred forty-three thousand, seven hundred twenty-nine".