748809254 has 4 divisors (see below), whose sum is σ = 1123213884. Its totient is φ = 374404626.

The previous prime is 748809169. The next prime is 748809289. The reversal of 748809254 is 452908847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452908847 = 23 ⋅19691689.

It is a junction number, because it is equal to n+sod(n) for n = 748809199 and 748809208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187202312 + ... + 187202315.

It is an arithmetic number, because the mean of its divisors is an integer number (280803471).

Almost surely, 2^748809254 is an apocalyptic number.

748809254 is a deficient number, since it is larger than the sum of its proper divisors (374404630).

748809254 is a wasteful number, since it uses less digits than its factorization.

748809254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374404629.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 748809254 is about 27364.3792913342. The cubic root of 748809254 is about 908.0792130431.

The spelling of 748809254 in words is "seven hundred forty-eight million, eight hundred nine thousand, two hundred fifty-four".