40047677 has 4 divisors (see below), whose sum is σ = 40111776. Its totient is φ = 39983580.

The previous prime is 40047671. The next prime is 40047697. The reversal of 40047677 is 77674004.

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 40047677 - 2⁴ = 40047661 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 (40047671) 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, 31103 + ... + 32364.

It is an arithmetic number, because the mean of its divisors is an integer number (10027944).

Almost surely, 2^40047677 is an apocalyptic number.

It is an amenable number.

40047677 is a deficient number, since it is larger than the sum of its proper divisors (64099).

40047677 is an equidigital number, since it uses as much as digits as its factorization.

40047677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64098.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 40047677 is about 6328.3233956554. The cubic root of 40047677 is about 342.1310129245.

The spelling of 40047677 in words is "forty million, forty-seven thousand, six hundred seventy-seven".