1247098607 has 4 divisors (see below), whose sum is σ = 1248266280. Its totient is φ = 1245930936.

The previous prime is 1247098591. The next prime is 1247098609. The reversal of 1247098607 is 7068907421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1247098607 - 2⁴ = 1247098591 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 (1247098609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582233 + ... + 584370.

It is an arithmetic number, because the mean of its divisors is an integer number (312066570).

Almost surely, 2^1247098607 is an apocalyptic number.

1247098607 is a deficient number, since it is larger than the sum of its proper divisors (1167673).

1247098607 is a wasteful number, since it uses less digits than its factorization.

1247098607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167672.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1247098607 is about 35314.2833284211. The cubic root of 1247098607 is about 1076.3832511097.

The spelling of 1247098607 in words is "one billion, two hundred forty-seven million, ninety-eight thousand, six hundred seven".