7902949 has 2 divisors, whose sum is σ = 7902950. Its totient is φ = 7902948.

The previous prime is 7902931. The next prime is 7902959. The reversal of 7902949 is 9492097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 986049 = 2630^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 7902949 - 2⁹ = 7902437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7902919) 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 as a sum of consecutive naturals, namely, 3951474 + 3951475.

It is an arithmetic number, because the mean of its divisors is an integer number (3951475).

Almost surely, 2^7902949 is an apocalyptic number.

It is an amenable number.

7902949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7902949 is an equidigital number, since it uses as much as digits as its factorization.

7902949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 7902949 is about 2811.2184191201. The cubic root of 7902949 is about 199.1879489949.

The spelling of 7902949 in words is "seven million, nine hundred two thousand, nine hundred forty-nine".