406986767 has 6 divisors (see below), whose sum is σ = 447349224. Its totient is φ = 369987860.

The previous prime is 406986737. The next prime is 406986781. The reversal of 406986767 is 767689604.

It is a happy number.

It is not a de Polignac number, because 406986767 - 2⁶ = 406986703 is a prime.

It is a super-2 number, since 2×406986767² = 331276457026224578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406986737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1681643 + ... + 1681884.

It is an arithmetic number, because the mean of its divisors is an integer number (74558204).

Almost surely, 2^406986767 is an apocalyptic number.

406986767 is a deficient number, since it is larger than the sum of its proper divisors (40362457).

406986767 is a wasteful number, since it uses less digits than its factorization.

406986767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363549 (or 3363538 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 406986767 is about 20173.9130314374. The cubic root of 406986767 is about 741.0714737555.

The spelling of 406986767 in words is "four hundred six million, nine hundred eighty-six thousand, seven hundred sixty-seven".