807999157 has 8 divisors (see below), whose sum is σ = 924281216. Its totient is φ = 691930512.

The previous prime is 807999109. The next prime is 807999169. The reversal of 807999157 is 751999708.

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

It is a de Polignac number, because none of the positive numbers 2^k-807999157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 807999098 and 807999107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807939157) 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 7 ways as a sum of consecutive naturals, for example, 45153 + ... + 60454.

It is an arithmetic number, because the mean of its divisors is an integer number (115535152).

Almost surely, 2^807999157 is an apocalyptic number.

It is an amenable number.

807999157 is a deficient number, since it is larger than the sum of its proper divisors (116282059).

807999157 is a wasteful number, since it uses less digits than its factorization.

807999157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106707.

The product of its (nonzero) digits is 1428840, while the sum is 55.

The square root of 807999157 is about 28425.3259787817. The cubic root of 807999157 is about 931.4015776449.

The spelling of 807999157 in words is "eight hundred seven million, nine hundred ninety-nine thousand, one hundred fifty-seven".