70803987 has 16 divisors (see below), whose sum is σ = 96192000. Its totient is φ = 46317024.

The previous prime is 70803983. The next prime is 70804009. The reversal of 70803987 is 78930807.

It is not a de Polignac number, because 70803987 - 2² = 70803983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70803983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41589 + ... + 43257.

It is an arithmetic number, because the mean of its divisors is an integer number (6012000).

Almost surely, 2^70803987 is an apocalyptic number.

70803987 is a deficient number, since it is larger than the sum of its proper divisors (25388013).

70803987 is a wasteful number, since it uses less digits than its factorization.

70803987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 70803987 is about 8414.5105026971. The cubic root of 70803987 is about 413.7003654677.

The spelling of 70803987 in words is "seventy million, eight hundred three thousand, nine hundred eighty-seven".