78384622 has 8 divisors (see below), whose sum is σ = 121631400. Its totient is φ = 37840824.

The previous prime is 78384617. The next prime is 78384641. The reversal of 78384622 is 22648387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78384622² = 12288297932165768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675672 + ... + 675787.

It is an arithmetic number, because the mean of its divisors is an integer number (15203925).

Almost surely, 2^78384622 is an apocalyptic number.

78384622 is a deficient number, since it is larger than the sum of its proper divisors (43246778).

78384622 is a wasteful number, since it uses less digits than its factorization.

78384622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351490.

The product of its digits is 129024, while the sum is 40.

The square root of 78384622 is about 8853.5090218512. The cubic root of 78384622 is about 427.9670069481.

The spelling of 78384622 in words is "seventy-eight million, three hundred eighty-four thousand, six hundred twenty-two".