1097378 has 8 divisors (see below), whose sum is σ = 1652268. Its totient is φ = 546624.

The previous prime is 1097377. The next prime is 1097381. The reversal of 1097378 is 8737901.

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 413449 = 827^2 + 643^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1097377) 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, 251 + ... + 1502.

2^1097378 is an apocalyptic number.

1097378 is a deficient number, since it is larger than the sum of its proper divisors (554890).

1097378 is a wasteful number, since it uses less digits than its factorization.

1097378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1097378 is about 1047.5581129465. The cubic root of 1097378 is about 103.1459269437.

Multiplying 1097378 by its sum of digits (35), we get a triangular number (38408230 = T₈₇₆₄).

The spelling of 1097378 in words is "one million, ninety-seven thousand, three hundred seventy-eight".