1097964 has 36 divisors (see below), whose sum is σ = 3172624. Its totient is φ = 313632.

The previous prime is 1097947. The next prime is 1097983. The reversal of 1097964 is 4697901.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1927 + ... + 2430.

2^1097964 is an apocalyptic number.

1097964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1097964 is an abundant number, since it is smaller than the sum of its proper divisors (2074660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097964 is a wasteful number, since it uses less digits than its factorization.

1097964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1097964 is about 1047.8377737035. The cubic root of 1097964 is about 103.1642836563.

The spelling of 1097964 in words is "one million, ninety-seven thousand, nine hundred sixty-four".