40777693 has 4 divisors (see below), whose sum is σ = 44484768. Its totient is φ = 37070620.

The previous prime is 40777691. The next prime is 40777697. The reversal of 40777693 is 39677704.

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 40777693 - 2¹ = 40777691 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 (40777691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853521 + ... + 1853542.

It is an arithmetic number, because the mean of its divisors is an integer number (11121192).

Almost surely, 2^40777693 is an apocalyptic number.

It is an amenable number.

40777693 is a deficient number, since it is larger than the sum of its proper divisors (3707075).

40777693 is a wasteful number, since it uses less digits than its factorization.

40777693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707074.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 40777693 is about 6385.7413821733. The cubic root of 40777693 is about 344.1973724250.

The spelling of 40777693 in words is "forty million, seven hundred seventy-seven thousand, six hundred ninety-three".