807457949 has 2 divisors, whose sum is σ = 807457950. Its totient is φ = 807457948.

The previous prime is 807457943. The next prime is 807458017. The reversal of 807457949 is 949754708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749773924 + 57684025 = 27382^2 + 7595^2 .

It is a cyclic number.

It is not a de Polignac number, because 807457949 - 2¹⁶ = 807392413 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 807457949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (807457943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403728974 + 403728975.

It is an arithmetic number, because the mean of its divisors is an integer number (403728975).

Almost surely, 2^807457949 is an apocalyptic number.

It is an amenable number.

807457949 is a deficient number, since it is larger than the sum of its proper divisors (1).

807457949 is an equidigital number, since it uses as much as digits as its factorization.

807457949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 807457949 is about 28415.8045636579. The cubic root of 807457949 is about 931.1935763661.

The spelling of 807457949 in words is "eight hundred seven million, four hundred fifty-seven thousand, nine hundred forty-nine".