78343055 has 32 divisors (see below), whose sum is σ = 114390144. Its totient is φ = 50282496.

The previous prime is 78343019. The next prime is 78343073. The reversal of 78343055 is 55034387.

It is a cyclic number.

It is not a de Polignac number, because 78343055 - 2¹⁰ = 78342031 is a prime.

It is a super-2 number, since 2×78343055² = 12275268533466050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209849 + ... + 210221.

It is an arithmetic number, because the mean of its divisors is an integer number (3574692).

Almost surely, 2^78343055 is an apocalyptic number.

78343055 is a deficient number, since it is larger than the sum of its proper divisors (36047089).

78343055 is a wasteful number, since it uses less digits than its factorization.

78343055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 78343055 is about 8851.1612232520. The cubic root of 78343055 is about 427.8913439351.

The spelling of 78343055 in words is "seventy-eight million, three hundred forty-three thousand, fifty-five".