2173487 has 2 divisors, whose sum is σ = 2173488. Its totient is φ = 2173486.

The previous prime is 2173453. The next prime is 2173499. The reversal of 2173487 is 7843712.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2173487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2173447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086743 + 1086744.

It is an arithmetic number, because the mean of its divisors is an integer number (1086744).

2^2173487 is an apocalyptic number.

2173487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173487 is an equidigital number, since it uses as much as digits as its factorization.

2173487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 2173487 is about 1474.2750760967. The cubic root of 2173487 is about 129.5345683718.

The spelling of 2173487 in words is "two million, one hundred seventy-three thousand, four hundred eighty-seven".