64825743 has 32 divisors (see below), whose sum is σ = 95496192. Its totient is φ = 38937600.

The previous prime is 64825711. The next prime is 64825751. The reversal of 64825743 is 34752846.

It is a happy number.

It is not a de Polignac number, because 64825743 - 2⁵ = 64825711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64825763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206955 + ... + 207267.

It is an arithmetic number, because the mean of its divisors is an integer number (2984256).

Almost surely, 2^64825743 is an apocalyptic number.

64825743 is a deficient number, since it is larger than the sum of its proper divisors (30670449).

64825743 is a wasteful number, since it uses less digits than its factorization.

64825743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its digits is 161280, while the sum is 39.

The square root of 64825743 is about 8051.4435351681. The cubic root of 64825743 is about 401.7129519347.

The spelling of 64825743 in words is "sixty-four million, eight hundred twenty-five thousand, seven hundred forty-three".