87970706 has 16 divisors (see below), whose sum is σ = 133224000. Its totient is φ = 43565040.

The previous prime is 87970681. The next prime is 87970709. The reversal of 87970706 is 60707978.

It is a super-2 number, since 2×87970706² = 15477690228276872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87970709) 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, 176045 + ... + 176543.

It is an arithmetic number, because the mean of its divisors is an integer number (8326500).

Almost surely, 2^87970706 is an apocalyptic number.

87970706 is a deficient number, since it is larger than the sum of its proper divisors (45253294).

87970706 is a wasteful number, since it uses less digits than its factorization.

87970706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 87970706 is about 9379.2700142388. The cubic root of 87970706 is about 444.7466571266.

The spelling of 87970706 in words is "eighty-seven million, nine hundred seventy thousand, seven hundred six".