84787541 has 4 divisors (see below), whose sum is σ = 85740300. Its totient is φ = 83834784.

The previous prime is 84787537. The next prime is 84787553. The reversal of 84787541 is 14578748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47210641 + 37576900 = 6871^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 84787541 - 2² = 84787537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84787492 and 84787501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84787501) 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, 476246 + ... + 476423.

It is an arithmetic number, because the mean of its divisors is an integer number (21435075).

Almost surely, 2^84787541 is an apocalyptic number.

It is an amenable number.

84787541 is a deficient number, since it is larger than the sum of its proper divisors (952759).

84787541 is an equidigital number, since it uses as much as digits as its factorization.

84787541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952758.

The product of its digits is 250880, while the sum is 44.

The square root of 84787541 is about 9208.0150412562. The cubic root of 84787541 is about 439.3163297951.

It can be divided in two parts, 847 and 87541, that added together give a palindrome (88388).

The spelling of 84787541 in words is "eighty-four million, seven hundred eighty-seven thousand, five hundred forty-one".