40077077 has 4 divisors (see below), whose sum is σ = 40253856. Its totient is φ = 39900300.

The previous prime is 40077067. The next prime is 40077083. The reversal of 40077077 is 77077004.

40077077 = 3654² + 3655² + 3656².

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 40077077 - 2⁸ = 40076821 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 (40077047) 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, 88049 + ... + 88502.

It is an arithmetic number, because the mean of its divisors is an integer number (10063464).

Almost surely, 2^40077077 is an apocalyptic number.

It is an amenable number.

40077077 is a deficient number, since it is larger than the sum of its proper divisors (176779).

40077077 is a wasteful number, since it uses less digits than its factorization.

40077077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176778.

The product of its (nonzero) digits is 9604, while the sum is 32.

The square root of 40077077 is about 6330.6458596260. The cubic root of 40077077 is about 342.2147147527.

It can be divided in two parts, 400 and 77077, that added together give a palindrome (77477).

The spelling of 40077077 in words is "forty million, seventy-seven thousand, seventy-seven".