84001481 has 4 divisors (see below), whose sum is σ = 84045264. Its totient is φ = 83957700.

The previous prime is 84001459. The next prime is 84001499. The reversal of 84001481 is 18410048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84001481 is a prime.

It is a super-2 number, since 2×84001481² = 14112497620386722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84001481.

It is not an unprimeable number, because it can be changed into a prime (84001441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18875 + ... + 22896.

It is an arithmetic number, because the mean of its divisors is an integer number (21011316).

Almost surely, 2^84001481 is an apocalyptic number.

It is an amenable number.

84001481 is a deficient number, since it is larger than the sum of its proper divisors (43783).

84001481 is a wasteful number, since it uses less digits than its factorization.

84001481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43782.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 84001481 is about 9165.2321847294. The cubic root of 84001481 is about 437.9544878101.

The spelling of 84001481 in words is "eighty-four million, one thousand, four hundred eighty-one".