75938778 has 96 divisors (see below), whose sum is σ = 181988352. Its totient is φ = 22809600.

The previous prime is 75938767. The next prime is 75938789. The reversal of 75938778 is 87783957.

It is an interprime number because it is at equal distance from previous prime (75938767) and next prime (75938789).

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, 782826 + ... + 782922.

It is an arithmetic number, because the mean of its divisors is an integer number (1895712).

Almost surely, 2^75938778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75938778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90994176).

75938778 is an abundant number, since it is smaller than the sum of its proper divisors (106049574).

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

75938778 is a wasteful number, since it uses less digits than its factorization.

75938778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 217 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 75938778 is about 8714.2858571429. The cubic root of 75938778 is about 423.4685885763.

The spelling of 75938778 in words is "seventy-five million, nine hundred thirty-eight thousand, seven hundred seventy-eight".