1377345 has 8 divisors (see below), whose sum is σ = 2203776. Its totient is φ = 734576.

The previous prime is 1377317. The next prime is 1377347. The reversal of 1377345 is 5437731.

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

It is a cyclic number.

It is not a de Polignac number, because 1377345 - 2⁶ = 1377281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1377347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45897 + ... + 45926.

It is an arithmetic number, because the mean of its divisors is an integer number (275472).

2^1377345 is an apocalyptic number.

1377345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377345 is a deficient number, since it is larger than the sum of its proper divisors (826431).

1377345 is an equidigital number, since it uses as much as digits as its factorization.

1377345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91831.

The product of its digits is 8820, while the sum is 30.

The square root of 1377345 is about 1173.6034253529. The cubic root of 1377345 is about 111.2621835750.

The spelling of 1377345 in words is "one million, three hundred seventy-seven thousand, three hundred forty-five".