84426510 has 96 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 19027008.

The previous prime is 84426493. The next prime is 84426613. The reversal of 84426510 is 1562448.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115767 + ... + 116493.

It is an arithmetic number, because the mean of its divisors is an integer number (2489760).

Almost surely, 2^84426510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84426510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119508480).

84426510 is an abundant number, since it is smaller than the sum of its proper divisors (154590450).

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

84426510 is a wasteful number, since it uses less digits than its factorization.

84426510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 84426510 is about 9188.3899568967. The cubic root of 84426510 is about 438.6918965922.

Adding to 84426510 its reverse (1562448), we get a palindrome (85988958).

The spelling of 84426510 in words is "eighty-four million, four hundred twenty-six thousand, five hundred ten".