641197470 has 16 divisors (see below), whose sum is σ = 1538874000. Its totient is φ = 170985984.

The previous prime is 641197463. The next prime is 641197489. The reversal of 641197470 is 74791146.

It is a super-2 number, since 2×641197470² = 822268391068801800, which contains 22 as substring.

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, 10686595 + ... + 10686654.

It is an arithmetic number, because the mean of its divisors is an integer number (96179625).

Almost surely, 2^641197470 is an apocalyptic number.

641197470 is an abundant number, since it is smaller than the sum of its proper divisors (897676530).

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

641197470 is a wasteful number, since it uses less digits than its factorization.

641197470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21373259.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 641197470 is about 25321.8773000739. The cubic root of 641197470 is about 862.3110142542.

The spelling of 641197470 in words is "six hundred forty-one million, one hundred ninety-seven thousand, four hundred seventy".