40079597 has 4 divisors (see below), whose sum is σ = 40114716. Its totient is φ = 40044480.

The previous prime is 40079573. The next prime is 40079609. The reversal of 40079597 is 79597004.

It is a happy number.

40079597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 1503076 = 6211^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 40079597 - 2¹² = 40075501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40009597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15788 + ... + 18149.

It is an arithmetic number, because the mean of its divisors is an integer number (10028679).

Almost surely, 2^40079597 is an apocalyptic number.

It is an amenable number.

40079597 is a deficient number, since it is larger than the sum of its proper divisors (35119).

40079597 is a wasteful number, since it uses less digits than its factorization.

40079597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35118.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 40079597 is about 6330.8448883226. The cubic root of 40079597 is about 342.2218872902.

It can be divided in two parts, 400 and 79597, that added together give a palindrome (79997).

The spelling of 40079597 in words is "forty million, seventy-nine thousand, five hundred ninety-seven".