1672651 has 2 divisors, whose sum is σ = 1672652. Its totient is φ = 1672650.

The previous prime is 1672639. The next prime is 1672663. The reversal of 1672651 is 1562761.

It is a balanced prime because it is at equal distance from previous prime (1672639) and next prime (1672663).

It is a cyclic number.

It is not a de Polignac number, because 1672651 - 2⁷ = 1672523 is a prime.

It is a super-2 number, since 2×1672651² = 5595522735602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1672631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836325 + 836326.

It is an arithmetic number, because the mean of its divisors is an integer number (836326).

2^1672651 is an apocalyptic number.

1672651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672651 is an equidigital number, since it uses as much as digits as its factorization.

1672651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 1672651 is about 1293.3100942929. The cubic root of 1672651 is about 118.7048448816.

The spelling of 1672651 in words is "one million, six hundred seventy-two thousand, six hundred fifty-one".