30727090 has 8 divisors (see below), whose sum is σ = 55308780. Its totient is φ = 12290832.

The previous prime is 30727051. The next prime is 30727097. The reversal of 30727090 is 9072703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 2732409 = 5291^2 + 1653^2 .

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

It is a super-3 number, since 3×30727090³ (a number of 23 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (30727097) 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, 1536345 + ... + 1536364.

Almost surely, 2^30727090 is an apocalyptic number.

30727090 is a deficient number, since it is larger than the sum of its proper divisors (24581690).

30727090 is a wasteful number, since it uses less digits than its factorization.

30727090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072716.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 30727090 is about 5543.2021431660. The cubic root of 30727090 is about 313.2135035474.

Adding to 30727090 its reverse (9072703), we get a palindrome (39799793).

The spelling of 30727090 in words is "thirty million, seven hundred twenty-seven thousand, ninety".