1304881887 has 8 divisors (see below), whose sum is σ = 1741126320. Its totient is φ = 869279360.

The previous prime is 1304881873. The next prime is 1304881891. The reversal of 1304881887 is 7881884031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304881887 - 2⁴ = 1304881871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304881687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155712 + ... + 163877.

It is an arithmetic number, because the mean of its divisors is an integer number (217640790).

Almost surely, 2^1304881887 is an apocalyptic number.

1304881887 is a deficient number, since it is larger than the sum of its proper divisors (436244433).

1304881887 is a wasteful number, since it uses less digits than its factorization.

1304881887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320953.

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 1304881887 is about 36123.1489075911. The cubic root of 1304881887 is about 1092.7573448887.

The spelling of 1304881887 in words is "one billion, three hundred four million, eight hundred eighty-one thousand, eight hundred eighty-seven".