78358101 has 8 divisors (see below), whose sum is σ = 105082080. Its totient is φ = 51936432.

The previous prime is 78358097. The next prime is 78358103. The reversal of 78358101 is 10185387.

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

It is not a de Polignac number, because 78358101 - 2² = 78358097 is a prime.

It is a super-2 number, since 2×78358101² = 12279983984652402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78358103) 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, 74971 + ... + 76008.

It is an arithmetic number, because the mean of its divisors is an integer number (13135260).

Almost surely, 2^78358101 is an apocalyptic number.

It is an amenable number.

78358101 is a deficient number, since it is larger than the sum of its proper divisors (26723979).

78358101 is a wasteful number, since it uses less digits than its factorization.

78358101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151155.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 78358101 is about 8852.0111274218. The cubic root of 78358101 is about 427.9187347529.

The spelling of 78358101 in words is "seventy-eight million, three hundred fifty-eight thousand, one hundred one".