40694977 has 4 divisors (see below), whose sum is σ = 40768596. Its totient is φ = 40621360.

The previous prime is 40694959. The next prime is 40694987. The reversal of 40694977 is 77949604.

40694977 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 2143296 + 38551681 = 1464^2 + 6209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40694977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40694987) 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, 35974 + ... + 37087.

It is an arithmetic number, because the mean of its divisors is an integer number (10192149).

Almost surely, 2^40694977 is an apocalyptic number.

It is an amenable number.

40694977 is a deficient number, since it is larger than the sum of its proper divisors (73619).

40694977 is an equidigital number, since it uses as much as digits as its factorization.

40694977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73618.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 40694977 is about 6379.2614776320. The cubic root of 40694977 is about 343.9644844576.

The spelling of 40694977 in words is "forty million, six hundred ninety-four thousand, nine hundred seventy-seven".