30499969 has 2 divisors, whose sum is σ = 30499970. Its totient is φ = 30499968.

The previous prime is 30499961. The next prime is 30499993. The reversal of 30499969 is 96999403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28483569 + 2016400 = 5337^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 30499969 - 2³ = 30499961 is a prime.

It is a super-2 number, since 2×30499969² = 1860496218001922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30499961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15249984 + 15249985.

It is an arithmetic number, because the mean of its divisors is an integer number (15249985).

Almost surely, 2^30499969 is an apocalyptic number.

It is an amenable number.

30499969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30499969 is an equidigital number, since it uses as much as digits as its factorization.

30499969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 30499969 is about 5522.6777019848. The cubic root of 30499969 is about 312.4398826223.

The spelling of 30499969 in words is "thirty million, four hundred ninety-nine thousand, nine hundred sixty-nine".