1672553 has 2 divisors, whose sum is σ = 1672554. Its totient is φ = 1672552.

The previous prime is 1672549. The next prime is 1672603. The reversal of 1672553 is 3552761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 444889 = 1108^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672553 - 2² = 1672549 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 6² + 7⁷ + 2¹⁶ + 5⁸ + 5⁸ + 3⁷ .

It is not a weakly prime, because it can be changed into another prime (1672523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836276 + 836277.

It is an arithmetic number, because the mean of its divisors is an integer number (836277).

2^1672553 is an apocalyptic number.

It is an amenable number.

1672553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672553 is an equidigital number, since it uses as much as digits as its factorization.

1672553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 1672553 is about 1293.2722064593. The cubic root of 1672553 is about 118.7025265455.

The spelling of 1672553 in words is "one million, six hundred seventy-two thousand, five hundred fifty-three".