78000353 has 4 divisors (see below), whose sum is σ = 78023088. Its totient is φ = 77977620.

The previous prime is 78000347. The next prime is 78000361. The reversal of 78000353 is 35300087.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78000353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78000653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051 + ... + 13472.

It is an arithmetic number, because the mean of its divisors is an integer number (19505772).

Almost surely, 2^78000353 is an apocalyptic number.

It is an amenable number.

78000353 is a deficient number, since it is larger than the sum of its proper divisors (22735).

78000353 is a wasteful number, since it uses less digits than its factorization.

78000353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22734.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 78000353 is about 8831.7808509949. The cubic root of 78000353 is about 427.2665127195.

The spelling of 78000353 in words is "seventy-eight million, three hundred fifty-three", and thus it is an aban number.