1373457 has 8 divisors (see below), whose sum is σ = 1840384. Its totient is φ = 911088.

The previous prime is 1373441. The next prime is 1373473. The reversal of 1373457 is 7543731.

It is an interprime number because it is at equal distance from previous prime (1373441) and next prime (1373473).

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

It is not a de Polignac number, because 1373457 - 2⁴ = 1373441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373417) 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, 358 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (230048).

2^1373457 is an apocalyptic number.

It is an amenable number.

1373457 is a deficient number, since it is larger than the sum of its proper divisors (466927).

1373457 is a wasteful number, since it uses less digits than its factorization.

1373457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279.

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

The square root of 1373457 is about 1171.9458178602. The cubic root of 1373457 is about 111.1573937926.

It can be divided in two parts, 1373 and 457, that added together give a triangular number (1830 = T₆₀).

The spelling of 1373457 in words is "one million, three hundred seventy-three thousand, four hundred fifty-seven".