1379975 has 18 divisors (see below), whose sum is σ = 1827264. Its totient is φ = 1033600.

The previous prime is 1379969. The next prime is 1379981. The reversal of 1379975 is 5799731.

It is an interprime number because it is at equal distance from previous prime (1379969) and next prime (1379981).

It is not a de Polignac number, because 1379975 - 2¹² = 1375879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7130 + ... + 7320.

2^1379975 is an apocalyptic number.

1379975 is a deficient number, since it is larger than the sum of its proper divisors (447289).

1379975 is a wasteful number, since it uses less digits than its factorization.

1379975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 213 counting only the distinct ones).

The product of its digits is 59535, while the sum is 41.

The square root of 1379975 is about 1174.7233716922. The cubic root of 1379975 is about 111.3329558435.

The spelling of 1379975 in words is "one million, three hundred seventy-nine thousand, nine hundred seventy-five".