7390830861 has 6 divisors (see below), whose sum is σ = 10675644590. Its totient is φ = 4927220568.

The previous prime is 7390830829. The next prime is 7390830883. The reversal of 7390830861 is 1680380937.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4927197636 + 2463633225 = 70194^2 + 49635^2 .

It is not a de Polignac number, because 7390830861 - 2⁵ = 7390830829 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 (7390830661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 410601706 + ... + 410601723.

Almost surely, 2^7390830861 is an apocalyptic number.

It is an amenable number.

7390830861 is a deficient number, since it is larger than the sum of its proper divisors (3284813729).

7390830861 is a wasteful number, since it uses less digits than its factorization.

7390830861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821203435 (or 821203432 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 7390830861 is about 85969.9416133337. The cubic root of 7390830861 is about 1947.8899693054.

The spelling of 7390830861 in words is "seven billion, three hundred ninety million, eight hundred thirty thousand, eight hundred sixty-one".