746747137 has 4 divisors (see below), whose sum is σ = 746802900. Its totient is φ = 746691376.

The previous prime is 746747081. The next prime is 746747147. The reversal of 746747137 is 731747647.

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, and also an emirpimes, since its reverse is a distinct semiprime: 731747647 = 2713 ⋅269719.

It can be written as a sum of positive squares in 2 ways, for example, as 456078736 + 290668401 = 21356^2 + 17049^2 .

It is a cyclic number.

It is not a de Polignac number, because 746747137 - 2¹¹ = 746745089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (746747147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5643 + ... + 39055.

It is an arithmetic number, because the mean of its divisors is an integer number (186700725).

Almost surely, 2^746747137 is an apocalyptic number.

It is an amenable number.

746747137 is a deficient number, since it is larger than the sum of its proper divisors (55763).

746747137 is a wasteful number, since it uses less digits than its factorization.

746747137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55762.

The product of its digits is 691488, while the sum is 46.

The square root of 746747137 is about 27326.6744592166. The cubic root of 746747137 is about 907.2448718826.

The spelling of 746747137 in words is "seven hundred forty-six million, seven hundred forty-seven thousand, one hundred thirty-seven".