275964478 has 4 divisors (see below), whose sum is σ = 413946720. Its totient is φ = 137982238.

The previous prime is 275964473. The next prime is 275964487. The reversal of 275964478 is 874469572.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275964473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68991118 + ... + 68991121.

It is an arithmetic number, because the mean of its divisors is an integer number (103486680).

Almost surely, 2^275964478 is an apocalyptic number.

275964478 is a deficient number, since it is larger than the sum of its proper divisors (137982242).

275964478 is a wasteful number, since it uses less digits than its factorization.

275964478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137982241.

The product of its digits is 3386880, while the sum is 52.

The square root of 275964478 is about 16612.1786048670. The cubic root of 275964478 is about 651.0550738642.

The spelling of 275964478 in words is "two hundred seventy-five million, nine hundred sixty-four thousand, four hundred seventy-eight".