40977799 has 2 divisors, whose sum is σ = 40977800. Its totient is φ = 40977798.

The previous prime is 40977793. The next prime is 40977809. The reversal of 40977799 is 99777904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40977799 - 2³ = 40977791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40977791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20488899 + 20488900.

It is an arithmetic number, because the mean of its divisors is an integer number (20488900).

Almost surely, 2^40977799 is an apocalyptic number.

40977799 is a deficient number, since it is larger than the sum of its proper divisors (1).

40977799 is an equidigital number, since it uses as much as digits as its factorization.

40977799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 40977799 is about 6401.3903958437. The cubic root of 40977799 is about 344.7594738815.

The spelling of 40977799 in words is "forty million, nine hundred seventy-seven thousand, seven hundred ninety-nine".