1377401 has 4 divisors (see below), whose sum is σ = 1437312. Its totient is φ = 1317492.

The previous prime is 1377379. The next prime is 1377403. The reversal of 1377401 is 1047731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1047731 = 521 ⋅2011.

It is a cyclic number.

It is not a de Polignac number, because 1377401 - 2¹⁰ = 1376377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 59887 = 1377401 / (1 + 3 + 7 + 7 + 4 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1377403) 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, 29921 + ... + 29966.

It is an arithmetic number, because the mean of its divisors is an integer number (359328).

2^1377401 is an apocalyptic number.

It is an amenable number.

1377401 is a deficient number, since it is larger than the sum of its proper divisors (59911).

1377401 is an equidigital number, since it uses as much as digits as its factorization.

1377401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59910.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 1377401 is about 1173.6272832548. The cubic root of 1377401 is about 111.2636914513.

The spelling of 1377401 in words is "one million, three hundred seventy-seven thousand, four hundred one".