1672523 has 2 divisors, whose sum is σ = 1672524. Its totient is φ = 1672522.

The previous prime is 1672519. The next prime is 1672529. The reversal of 1672523 is 3252761.

It is a weak prime.

It is an emirp because it is prime and its reverse (3252761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672523 - 2² = 1672519 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1672492 and 1672501.

It is not a weakly prime, because it can be changed into another prime (1672529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836261 + 836262.

It is an arithmetic number, because the mean of its divisors is an integer number (836262).

2^1672523 is an apocalyptic number.

1672523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672523 is an equidigital number, since it uses as much as digits as its factorization.

1672523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 1672523 is about 1293.2606079209. The cubic root of 1672523 is about 118.7018168326.

The spelling of 1672523 in words is "one million, six hundred seventy-two thousand, five hundred twenty-three".