70168491 has 16 divisors (see below), whose sum is σ = 104217120. Its totient is φ = 46660320.

The previous prime is 70168489. The next prime is 70168493. The reversal of 70168491 is 19486107.

70168491 is a `hidden beast` number, since 7 + 0 + 168 + 491 = 666.

It is an interprime number because it is at equal distance from previous prime (70168489) and next prime (70168493).

It is not a de Polignac number, because 70168491 - 2¹ = 70168489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70168493) 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, 8281 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (6513570).

Almost surely, 2^70168491 is an apocalyptic number.

70168491 is a deficient number, since it is larger than the sum of its proper divisors (34048629).

70168491 is a wasteful number, since it uses less digits than its factorization.

70168491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 70168491 is about 8376.6634765878. The cubic root of 70168491 is about 412.4589314485.

The spelling of 70168491 in words is "seventy million, one hundred sixty-eight thousand, four hundred ninety-one".