748215893 has 4 divisors (see below), whose sum is σ = 762333228. Its totient is φ = 734098560.

The previous prime is 748215859. The next prime is 748215911. The reversal of 748215893 is 398512847.

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: 398512847 = 71 ⋅5612857.

It can be written as a sum of positive squares in 2 ways, for example, as 415262884 + 332953009 = 20378^2 + 18247^2 .

It is a cyclic number.

It is not a de Polignac number, because 748215893 - 2¹² = 748211797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748215823) 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, 7058588 + ... + 7058693.

It is an arithmetic number, because the mean of its divisors is an integer number (190583307).

Almost surely, 2^748215893 is an apocalyptic number.

It is an amenable number.

748215893 is a deficient number, since it is larger than the sum of its proper divisors (14117335).

748215893 is a wasteful number, since it uses less digits than its factorization.

748215893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14117334.

The product of its digits is 483840, while the sum is 47.

The square root of 748215893 is about 27353.5352925358. The cubic root of 748215893 is about 907.8392938333.

The spelling of 748215893 in words is "seven hundred forty-eight million, two hundred fifteen thousand, eight hundred ninety-three".