3870667 has 2 divisors, whose sum is σ = 3870668. Its totient is φ = 3870666.

The previous prime is 3870653. The next prime is 3870689. The reversal of 3870667 is 7660783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3870667 - 2¹¹ = 3868619 is a prime.

It is not a weakly prime, because it can be changed into another prime (3870617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935333 + 1935334.

It is an arithmetic number, because the mean of its divisors is an integer number (1935334).

Almost surely, 2^3870667 is an apocalyptic number.

3870667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3870667 is an equidigital number, since it uses as much as digits as its factorization.

3870667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 3870667 is about 1967.4010775640. The cubic root of 3870667 is about 157.0104662583.

Adding to 3870667 its product of nonzero digits (42336), we get a triangular number (3913003 = T₂₇₉₇).

The spelling of 3870667 in words is "three million, eight hundred seventy thousand, six hundred sixty-seven".