7870487 has 2 divisors, whose sum is σ = 7870488. Its totient is φ = 7870486.

The previous prime is 7870481. The next prime is 7870493. The reversal of 7870487 is 7840787.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (7870481) and next prime (7870493).

It is a cyclic number.

It is not a de Polignac number, because 7870487 - 2⁸ = 7870231 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7870481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3935243 + 3935244.

It is an arithmetic number, because the mean of its divisors is an integer number (3935244).

Almost surely, 2^7870487 is an apocalyptic number.

7870487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7870487 is an equidigital number, since it uses as much as digits as its factorization.

7870487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 7870487 is about 2805.4388248543. The cubic root of 7870487 is about 198.9148478729.

Adding to 7870487 its sum of digits (41), we get a triangular number (7870528 = T₃₉₆₇).

The spelling of 7870487 in words is "seven million, eight hundred seventy thousand, four hundred eighty-seven".