70189707 has 18 divisors (see below), whose sum is σ = 109023444. Its totient is φ = 40050360.

The previous prime is 70189699. The next prime is 70189709. The reversal of 70189707 is 70798107.

It is a happy number.

It is not a de Polignac number, because 70189707 - 2³ = 70189699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70189709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 101232 + ... + 101922.

It is an arithmetic number, because the mean of its divisors is an integer number (6056858).

Almost surely, 2^70189707 is an apocalyptic number.

70189707 is a deficient number, since it is larger than the sum of its proper divisors (38833737).

70189707 is an frugal number, since it uses more digits than its factorization.

70189707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 70189707 is about 8377.9297562107. The cubic root of 70189707 is about 412.5004973364.

Subtracting 70189707 from its reverse (70798107), we obtain a square (608400 = 780²).

The spelling of 70189707 in words is "seventy million, one hundred eighty-nine thousand, seven hundred seven".