1097964709 has 4 divisors (see below), whose sum is σ = 1123498816. Its totient is φ = 1072430604.

The previous prime is 1097964701. The next prime is 1097964719. The reversal of 1097964709 is 9074697901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1097964709 - 2³ = 1097964701 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 (1097964701) 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, 12766989 + ... + 12767074.

It is an arithmetic number, because the mean of its divisors is an integer number (280874704).

Almost surely, 2^1097964709 is an apocalyptic number.

It is an amenable number.

1097964709 is a deficient number, since it is larger than the sum of its proper divisors (25534107).

1097964709 is an equidigital number, since it uses as much as digits as its factorization.

1097964709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25534106.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 1097964709 is about 33135.5505311139. The cubic root of 1097964709 is about 1031.6430586206.

The spelling of 1097964709 in words is "one billion, ninety-seven million, nine hundred sixty-four thousand, seven hundred nine".