862473981 has 8 divisors (see below), whose sum is σ = 1150167744. Its totient is φ = 574881440.

The previous prime is 862473979. The next prime is 862474097. The reversal of 862473981 is 189374268.

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

It is a cyclic number.

It is not a de Polignac number, because 862473981 - 2¹ = 862473979 is a prime.

It is a super-2 number, since 2×862473981² = 1487722735803976722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 862473981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862473181) 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, 2481 + ... + 41606.

It is an arithmetic number, because the mean of its divisors is an integer number (143770968).

Almost surely, 2^862473981 is an apocalyptic number.

It is an amenable number.

862473981 is a deficient number, since it is larger than the sum of its proper divisors (287693763).

862473981 is a wasteful number, since it uses less digits than its factorization.

862473981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50611.

The product of its digits is 580608, while the sum is 48.

The square root of 862473981 is about 29367.9073309625. The cubic root of 862473981 is about 951.8795590194.

The spelling of 862473981 in words is "eight hundred sixty-two million, four hundred seventy-three thousand, nine hundred eighty-one".