40077959 has 4 divisors (see below), whose sum is σ = 42435504. Its totient is φ = 37720416.

The previous prime is 40077953. The next prime is 40077991. The reversal of 40077959 is 95977004.

It is a happy number.

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

It is not a de Polignac number, because 40077959 - 2⁴ = 40077943 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 (40077953) 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, 1178747 + ... + 1178780.

It is an arithmetic number, because the mean of its divisors is an integer number (10608876).

Almost surely, 2^40077959 is an apocalyptic number.

40077959 is a deficient number, since it is larger than the sum of its proper divisors (2357545).

40077959 is a wasteful number, since it uses less digits than its factorization.

40077959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357544.

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

The square root of 40077959 is about 6330.7155203816. The cubic root of 40077959 is about 342.2172251750.

The spelling of 40077959 in words is "forty million, seventy-seven thousand, nine hundred fifty-nine".