7906477949 has 2 divisors, whose sum is σ = 7906477950. Its totient is φ = 7906477948.

The previous prime is 7906477927. The next prime is 7906477981. The reversal of 7906477949 is 9497746097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6819786724 + 1086691225 = 82582^2 + 32965^2 .

It is a cyclic number.

It is not a de Polignac number, because 7906477949 - 2¹⁶ = 7906412413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7906477891 and 7906477900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7906477549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3953238974 + 3953238975.

It is an arithmetic number, because the mean of its divisors is an integer number (3953238975).

Almost surely, 2^7906477949 is an apocalyptic number.

It is an amenable number.

7906477949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7906477949 is an equidigital number, since it uses as much as digits as its factorization.

7906477949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The square root of 7906477949 is about 88918.3780160210. The cubic root of 7906477949 is about 1992.1759276089.

The spelling of 7906477949 in words is "seven billion, nine hundred six million, four hundred seventy-seven thousand, nine hundred forty-nine".