748587997 has 4 divisors (see below), whose sum is σ = 748643260. Its totient is φ = 748532736.

The previous prime is 748587971. The next prime is 748588007. The reversal of 748587997 is 799785847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 307335961 + 441252036 = 17531^2 + 21006^2 .

It is a cyclic number.

It is not a de Polignac number, because 748587997 - 2⁷ = 748587869 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 (748587937) 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, 8029 + ... + 39517.

It is an arithmetic number, because the mean of its divisors is an integer number (187160815).

Almost surely, 2^748587997 is an apocalyptic number.

It is an amenable number.

748587997 is a deficient number, since it is larger than the sum of its proper divisors (55263).

748587997 is a wasteful number, since it uses less digits than its factorization.

748587997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55262.

The product of its digits is 35562240, while the sum is 64.

The square root of 748587997 is about 27360.3362004198. The cubic root of 748587997 is about 907.9897649522.

The spelling of 748587997 in words is "seven hundred forty-eight million, five hundred eighty-seven thousand, nine hundred ninety-seven".