748006221 has 8 divisors (see below), whose sum is σ = 998069344. Its totient is φ = 498306960.

The previous prime is 748006177. The next prime is 748006241. The reversal of 748006221 is 122600847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 748006221 - 2⁷ = 748006093 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 (748006241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86131 + ... + 94416.

It is an arithmetic number, because the mean of its divisors is an integer number (124758668).

Almost surely, 2^748006221 is an apocalyptic number.

It is an amenable number.

748006221 is a deficient number, since it is larger than the sum of its proper divisors (250063123).

748006221 is a wasteful number, since it uses less digits than its factorization.

748006221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181931.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 748006221 is about 27349.7023932620. The cubic root of 748006221 is about 907.7544848606.

The spelling of 748006221 in words is "seven hundred forty-eight million, six thousand, two hundred twenty-one".