70690 has 8 divisors (see below), whose sum is σ = 127260. Its totient is φ = 28272.

The previous prime is 70687. The next prime is 70709. The reversal of 70690 is 9607.

70690 = T₁₈₆ + T₁₈₇ + ... + T₁₈₉.

It can be written as a sum of positive squares in 2 ways, for example, as 69169 + 1521 = 263^2 + 39^2 .

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

It is a super-2 number, since 2×70690² = 9994152200, which contains 22 as substring.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525 + ... + 3544.

2⁷⁰⁶⁹⁰ is an apocalyptic number.

70690 is a deficient number, since it is larger than the sum of its proper divisors (56570).

70690 is a wasteful number, since it uses less digits than its factorization.

70690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 70690 is about 265.8759109058. The cubic root of 70690 is about 41.3478241480.

The spelling of 70690 in words is "seventy thousand, six hundred ninety".