40772797 has 8 divisors (see below), whose sum is σ = 43990016. Its totient is φ = 37567152.

The previous prime is 40772789. The next prime is 40772861. The reversal of 40772797 is 79727704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40772797 - 2³ = 40772789 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 (40772497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5308 + ... + 10474.

It is an arithmetic number, because the mean of its divisors is an integer number (5498752).

Almost surely, 2^40772797 is an apocalyptic number.

It is an amenable number.

40772797 is a deficient number, since it is larger than the sum of its proper divisors (3217219).

40772797 is a wasteful number, since it uses less digits than its factorization.

40772797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 40772797 is about 6385.3580165876. The cubic root of 40772797 is about 344.1835964472.

The spelling of 40772797 in words is "forty million, seven hundred seventy-two thousand, seven hundred ninety-seven".