40077701 has 4 divisors (see below), whose sum is σ = 40091532. Its totient is φ = 40063872.

The previous prime is 40077691. The next prime is 40077703. The reversal of 40077701 is 10777004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16564900 + 23512801 = 4070^2 + 4849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40077701 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 (40077703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (10022883).

Almost surely, 2^40077701 is an apocalyptic number.

It is an amenable number.

40077701 is a deficient number, since it is larger than the sum of its proper divisors (13831).

40077701 is an equidigital number, since it uses as much as digits as its factorization.

40077701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 40077701 is about 6330.6951435052. The cubic root of 40077701 is about 342.2164908376.

The spelling of 40077701 in words is "forty million, seventy-seven thousand, seven hundred one".