78414750 has 64 divisors (see below), whose sum is σ = 217488960. Its totient is φ = 20908800.

The previous prime is 78414649. The next prime is 78414781. The reversal of 78414750 is 5741487.

It is a super-2 number, since 2×78414750² = 12297746035125000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 942 + ... + 12558.

It is an arithmetic number, because the mean of its divisors is an integer number (3398265).

Almost surely, 2^78414750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78414750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108744480).

78414750 is an abundant number, since it is smaller than the sum of its proper divisors (139074210).

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

78414750 is a wasteful number, since it uses less digits than its factorization.

78414750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11643 (or 11627 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 78414750 is about 8855.2103306471. The cubic root of 78414750 is about 428.0218312153.

The spelling of 78414750 in words is "seventy-eight million, four hundred fourteen thousand, seven hundred fifty".