1097690825 has 36 divisors (see below), whose sum is σ = 1709890560. Its totient is φ = 684261600.

The previous prime is 1097690809. The next prime is 1097690831. The reversal of 1097690825 is 5280967901.

It is not a de Polignac number, because 1097690825 - 2⁴ = 1097690809 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1097690825.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4745 + ... + 47094.

It is an arithmetic number, because the mean of its divisors is an integer number (47496960).

Almost surely, 2^1097690825 is an apocalyptic number.

It is an amenable number.

1097690825 is a deficient number, since it is larger than the sum of its proper divisors (612199735).

1097690825 is a wasteful number, since it uses less digits than its factorization.

1097690825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51878 (or 51862 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1097690825 is about 33131.4174915593. The cubic root of 1097690825 is about 1031.5572713992.

The spelling of 1097690825 in words is "one billion, ninety-seven million, six hundred ninety thousand, eight hundred twenty-five".