78162303 has 8 divisors (see below), whose sum is σ = 108747648. Its totient is φ = 49842584.

The previous prime is 78162299. The next prime is 78162313. The reversal of 78162303 is 30326187.

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

It is a cyclic number.

It is not a de Polignac number, because 78162303 - 2² = 78162299 is a prime.

It is a super-2 number, since 2×78162303² = 12218691220527618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78162313) 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, 566325 + ... + 566462.

It is an arithmetic number, because the mean of its divisors is an integer number (13593456).

Almost surely, 2^78162303 is an apocalyptic number.

78162303 is a deficient number, since it is larger than the sum of its proper divisors (30585345).

78162303 is a wasteful number, since it uses less digits than its factorization.

78162303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132813.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 78162303 is about 8840.9446893417. The cubic root of 78162303 is about 427.5620155578.

The spelling of 78162303 in words is "seventy-eight million, one hundred sixty-two thousand, three hundred three".