491070 has 16 divisors (see below), whose sum is σ = 1178640. Its totient is φ = 130944.

The previous prime is 491059. The next prime is 491081. The reversal of 491070 is 70194.

It is an interprime number because it is at equal distance from previous prime (491059) and next prime (491081).

It is a super-2 number, since 2×491070² = 482299489800, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8155 + ... + 8214.

It is an arithmetic number, because the mean of its divisors is an integer number (73665).

2⁴⁹¹⁰⁷⁰ is an apocalyptic number.

491070 is an abundant number, since it is smaller than the sum of its proper divisors (687570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491070 is a wasteful number, since it uses less digits than its factorization.

491070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16379.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 491070 is about 700.7638689316. The cubic root of 491070 is about 78.8946949227.

The spelling of 491070 in words is "four hundred ninety-one thousand, seventy".