82521414 has 48 divisors (see below), whose sum is σ = 186732000. Its totient is φ = 26304768.

The previous prime is 82521403. The next prime is 82521457. The reversal of 82521414 is 41412528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58287 + ... + 59685.

It is an arithmetic number, because the mean of its divisors is an integer number (3890250).

Almost surely, 2^82521414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82521414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93366000).

82521414 is an abundant number, since it is smaller than the sum of its proper divisors (104210586).

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

82521414 is a wasteful number, since it uses less digits than its factorization.

82521414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1546 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 82521414 is about 9084.1297877122. The cubic root of 82521414 is about 435.3670465263.

The spelling of 82521414 in words is "eighty-two million, five hundred twenty-one thousand, four hundred fourteen".