1457679 has 4 divisors (see below), whose sum is σ = 1943576. Its totient is φ = 971784.

The previous prime is 1457663. The next prime is 1457683. The reversal of 1457679 is 9767541.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1457679 - 2⁴ = 1457663 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457639) 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, 242944 + ... + 242949.

It is an arithmetic number, because the mean of its divisors is an integer number (485894).

2^1457679 is an apocalyptic number.

1457679 is a deficient number, since it is larger than the sum of its proper divisors (485897).

1457679 is an equidigital number, since it uses as much as digits as its factorization.

1457679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485896.

The product of its digits is 52920, while the sum is 39.

The square root of 1457679 is about 1207.3437787142. The cubic root of 1457679 is about 113.3845721790.

The spelling of 1457679 in words is "one million, four hundred fifty-seven thousand, six hundred seventy-nine".