1393925 has 12 divisors (see below), whose sum is σ = 1861860. Its totient is φ = 1029120.

The previous prime is 1393921. The next prime is 1393927. The reversal of 1393925 is 5293931.

It can be written as a sum of positive squares in 6 ways, for example, as 6241 + 1387684 = 79^2 + 1178^2 .

It is not a de Polignac number, because 1393925 - 2² = 1393921 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1393891 and 1393900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1820 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (155155).

2^1393925 is an apocalyptic number.

It is an amenable number.

1393925 is a deficient number, since it is larger than the sum of its proper divisors (467935).

1393925 is a wasteful number, since it uses less digits than its factorization.

1393925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4307 counting only the distinct ones).

The product of its digits is 7290, while the sum is 32.

The square root of 1393925 is about 1180.6460096066. The cubic root of 1393925 is about 111.7068492303.

It can be divided in two parts, 13 and 93925, that multiplied together give a square (1221025 = 1105²).

The spelling of 1393925 in words is "one million, three hundred ninety-three thousand, nine hundred twenty-five".