4009797 has 32 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 2320560.

The previous prime is 4009787. The next prime is 4009799. The reversal of 4009797 is 7979004.

It is not a de Polignac number, because 4009797 - 2⁴ = 4009781 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

4009797 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6538 + ... + 7124.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^4009797 is an apocalyptic number.

It is an amenable number.

4009797 is a deficient number, since it is larger than the sum of its proper divisors (2763963).

4009797 is a wasteful number, since it uses less digits than its factorization.

4009797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 4009797 is about 2002.4477521274. The cubic root of 4009797 is about 158.8695976021.

The spelling of 4009797 in words is "four million, nine thousand, seven hundred ninety-seven".