1672657 has 8 divisors (see below), whose sum is σ = 1956416. Its totient is φ = 1400112.

The previous prime is 1672651. The next prime is 1672663. The reversal of 1672657 is 7562761.

It is an interprime number because it is at equal distance from previous prime (1672651) and next prime (1672663).

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

It is not a de Polignac number, because 1672657 - 2⁷ = 1672529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1672651) 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, 2478 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (244552).

2^1672657 is an apocalyptic number.

It is an amenable number.

1672657 is a deficient number, since it is larger than the sum of its proper divisors (283759).

1672657 is an equidigital number, since it uses as much as digits as its factorization.

1672657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607.

The product of its digits is 17640, while the sum is 34.

The square root of 1672657 is about 1293.3124139202. The cubic root of 1672657 is about 118.7049868176.

The spelling of 1672657 in words is "one million, six hundred seventy-two thousand, six hundred fifty-seven".