690070 has 16 divisors (see below), whose sum is σ = 1253088. Its totient is φ = 273600.

The previous prime is 690059. The next prime is 690073. The reversal of 690070 is 70096.

690070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690073) by changing a digit.

690070 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 1738.

It is an arithmetic number, because the mean of its divisors is an integer number (78318).

2⁶⁹⁰⁰⁷⁰ is an apocalyptic number.

690070 is a deficient number, since it is larger than the sum of its proper divisors (563018).

690070 is a wasteful number, since it uses less digits than its factorization.

690070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

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

The square root of 690070 is about 830.7045202718. The cubic root of 690070 is about 88.3685473303.

The spelling of 690070 in words is "six hundred ninety thousand, seventy".