747290 has 8 divisors (see below), whose sum is σ = 1345140. Its totient is φ = 298912.

The previous prime is 747287. The next prime is 747319. The reversal of 747290 is 92747.

It can be written as a sum of positive squares in 2 ways, for example, as 737881 + 9409 = 859^2 + 97^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 37355 + ... + 37374.

2⁷⁴⁷²⁹⁰ is an apocalyptic number.

747290 is a deficient number, since it is larger than the sum of its proper divisors (597850).

747290 is a wasteful number, since it uses less digits than its factorization.

747290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74736.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 747290 is about 864.4593686230. The cubic root of 747290 is about 90.7464665326.

The spelling of 747290 in words is "seven hundred forty-seven thousand, two hundred ninety".