78396901 has 8 divisors (see below), whose sum is σ = 86801184. Its totient is φ = 70205520.

The previous prime is 78396883. The next prime is 78396919. The reversal of 78396901 is 10969387.

It is an interprime number because it is at equal distance from previous prime (78396883) and next prime (78396919).

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

It is not a de Polignac number, because 78396901 - 2⁹ = 78396389 is a prime.

It is a super-2 number, since 2×78396901² = 12292148172807602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78396931) 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, 52450 + ... + 53923.

It is an arithmetic number, because the mean of its divisors is an integer number (10850148).

Almost surely, 2^78396901 is an apocalyptic number.

It is an amenable number.

78396901 is a deficient number, since it is larger than the sum of its proper divisors (8404283).

78396901 is a wasteful number, since it uses less digits than its factorization.

78396901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106451.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 78396901 is about 8854.2024485551. The cubic root of 78396901 is about 427.9893528810.

It can be divided in two parts, 78396 and 901, that added together give a palindrome (79297).

The spelling of 78396901 in words is "seventy-eight million, three hundred ninety-six thousand, nine hundred one".