78293601 has 8 divisors (see below), whose sum is σ = 115990560. Its totient is φ = 52195716.

The previous prime is 78293581. The next prime is 78293629. The reversal of 78293601 is 10639287.

It is not a de Polignac number, because 78293601 - 2¹¹ = 78291553 is a prime.

It is a super-2 number, since 2×78293601² = 12259775915094402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78293671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449855 + ... + 1449908.

It is an arithmetic number, because the mean of its divisors is an integer number (14498820).

Almost surely, 2^78293601 is an apocalyptic number.

It is an amenable number.

78293601 is a deficient number, since it is larger than the sum of its proper divisors (37696959).

78293601 is a wasteful number, since it uses less digits than its factorization.

78293601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899772 (or 2899766 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 78293601 is about 8848.3671375006. The cubic root of 78293601 is about 427.8012896105.

The spelling of 78293601 in words is "seventy-eight million, two hundred ninety-three thousand, six hundred one".