78050923 has 4 divisors (see below), whose sum is σ = 79373880. Its totient is φ = 76727968.

The previous prime is 78050911. The next prime is 78050933. The reversal of 78050923 is 32905087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32905087 = 1381 ⋅23827.

It is a cyclic number.

It is not a de Polignac number, because 78050923 - 2⁹ = 78050411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78050933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661390 + ... + 661507.

It is an arithmetic number, because the mean of its divisors is an integer number (19843470).

Almost surely, 2^78050923 is an apocalyptic number.

78050923 is a deficient number, since it is larger than the sum of its proper divisors (1322957).

78050923 is a wasteful number, since it uses less digits than its factorization.

78050923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322956.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 78050923 is about 8834.6433431124. The cubic root of 78050923 is about 427.3588293947.

The spelling of 78050923 in words is "seventy-eight million, fifty thousand, nine hundred twenty-three".