1097408685 has 8 divisors (see below), whose sum is σ = 1755853920. Its totient is φ = 585284624.

The previous prime is 1097408677. The next prime is 1097408699. The reversal of 1097408685 is 5868047901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1097408685 - 2³ = 1097408677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36580275 + ... + 36580304.

It is an arithmetic number, because the mean of its divisors is an integer number (219481740).

Almost surely, 2^1097408685 is an apocalyptic number.

1097408685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1097408685 is a deficient number, since it is larger than the sum of its proper divisors (658445235).

1097408685 is an equidigital number, since it uses as much as digits as its factorization.

1097408685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73160587.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 1097408685 is about 33127.1593258462. The cubic root of 1097408685 is about 1031.4688832723.

The spelling of 1097408685 in words is "one billion, ninety-seven million, four hundred eight thousand, six hundred eighty-five".