416802991 has 8 divisors (see below), whose sum is σ = 481441104. Its totient is φ = 356622720.

The previous prime is 416802989. The next prime is 416803021. The reversal of 416802991 is 199208614.

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 416802991 - 2¹ = 416802989 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 (416802901) 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, 1114260 + ... + 1114633.

It is an arithmetic number, because the mean of its divisors is an integer number (60180138).

Almost surely, 2^416802991 is an apocalyptic number.

416802991 is a deficient number, since it is larger than the sum of its proper divisors (64638113).

416802991 is a wasteful number, since it uses less digits than its factorization.

416802991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228921.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 416802991 is about 20415.7535006671. The cubic root of 416802991 is about 746.9822388128.

The spelling of 416802991 in words is "four hundred sixteen million, eight hundred two thousand, nine hundred ninety-one".