406501797 has 16 divisors (see below), whose sum is σ = 592410560. Its totient is φ = 246419712.

The previous prime is 406501763. The next prime is 406501801. The reversal of 406501797 is 797105604.

It is not a de Polignac number, because 406501797 - 2¹² = 406497701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406501097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75172 + ... + 80397.

It is an arithmetic number, because the mean of its divisors is an integer number (37025660).

Almost surely, 2^406501797 is an apocalyptic number.

It is an amenable number.

406501797 is a deficient number, since it is larger than the sum of its proper divisors (185908763).

406501797 is a wasteful number, since it uses less digits than its factorization.

406501797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155652.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 406501797 is about 20161.8897179803. The cubic root of 406501797 is about 740.7770003964. Note that the first 3 decimals are identical.

The spelling of 406501797 in words is "four hundred six million, five hundred one thousand, seven hundred ninety-seven".