732666157 has 4 divisors (see below), whose sum is σ = 733140700. Its totient is φ = 732191616.

The previous prime is 732666139. The next prime is 732666199. The reversal of 732666157 is 751666237.

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

It can be written as a sum of positive squares in 2 ways, for example, as 550793961 + 181872196 = 23469^2 + 13486^2 .

It is a cyclic number.

It is not a de Polignac number, because 732666157 - 2⁷ = 732666029 is a prime.

It is a super-2 number, since 2×732666157² = 1073599395226297298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732666257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234948 + ... + 238045.

It is an arithmetic number, because the mean of its divisors is an integer number (183285175).

Almost surely, 2^732666157 is an apocalyptic number.

It is an amenable number.

732666157 is a deficient number, since it is larger than the sum of its proper divisors (474543).

732666157 is a wasteful number, since it uses less digits than its factorization.

732666157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474542.

The product of its digits is 317520, while the sum is 43.

The square root of 732666157 is about 27067.8066529226. The cubic root of 732666157 is about 901.5061845207.

The spelling of 732666157 in words is "seven hundred thirty-two million, six hundred sixty-six thousand, one hundred fifty-seven".