78496853 has 4 divisors (see below), whose sum is σ = 78869088. Its totient is φ = 78124620.

The previous prime is 78496841. The next prime is 78496877. The reversal of 78496853 is 35869487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35869487 = 313 ⋅114599.

It is a cyclic number.

It is not a de Polignac number, because 78496853 - 2¹⁰ = 78495829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78496883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185801 + ... + 186222.

It is an arithmetic number, because the mean of its divisors is an integer number (19717272).

Almost surely, 2^78496853 is an apocalyptic number.

It is an amenable number.

78496853 is a deficient number, since it is larger than the sum of its proper divisors (372235).

78496853 is a wasteful number, since it uses less digits than its factorization.

78496853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372234.

The product of its digits is 1451520, while the sum is 50.

The square root of 78496853 is about 8859.8449760704. The cubic root of 78496853 is about 428.1711637436.

The spelling of 78496853 in words is "seventy-eight million, four hundred ninety-six thousand, eight hundred fifty-three".