748370191 has 4 divisors (see below), whose sum is σ = 748478584. Its totient is φ = 748261800.

The previous prime is 748370179. The next prime is 748370197. The reversal of 748370191 is 191073847.

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

It is a cyclic number.

It is not a de Polignac number, because 748370191 - 2¹⁵ = 748337423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748370197) 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, 43080 + ... + 57901.

It is an arithmetic number, because the mean of its divisors is an integer number (187119646).

Almost surely, 2^748370191 is an apocalyptic number.

748370191 is a deficient number, since it is larger than the sum of its proper divisors (108393).

748370191 is a wasteful number, since it uses less digits than its factorization.

748370191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108392.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 748370191 is about 27356.3555869564. The cubic root of 748370191 is about 907.9016947886.

The spelling of 748370191 in words is "seven hundred forty-eight million, three hundred seventy thousand, one hundred ninety-one".