1393776 has 30 divisors (see below), whose sum is σ = 3901040. Its totient is φ = 464544.

The previous prime is 1393771. The next prime is 1393781. The reversal of 1393776 is 6773931.

It is an interprime number because it is at equal distance from previous prime (1393771) and next prime (1393781).

It is a super-2 number, since 2×1393776² = 3885223076352, which contains 22 as substring.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 1393776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4696 + ... + 4983.

2^1393776 is an apocalyptic number.

1393776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1393776 is an abundant number, since it is smaller than the sum of its proper divisors (2507264).

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

1393776 is a wasteful number, since it uses less digits than its factorization.

1393776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693 (or 9684 counting only the distinct ones).

The product of its digits is 23814, while the sum is 36.

The square root of 1393776 is about 1180.5829068727. The cubic root of 1393776 is about 111.7028688838.

The spelling of 1393776 in words is "one million, three hundred ninety-three thousand, seven hundred seventy-six".