30499477 has 2 divisors, whose sum is σ = 30499478. Its totient is φ = 30499476.

The previous prime is 30499471. The next prime is 30499481. The reversal of 30499477 is 77499403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29224836 + 1274641 = 5406^2 + 1129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30499477 is a prime.

It is a super-3 number, since 3×30499477³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30499471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15249738 + 15249739.

It is an arithmetic number, because the mean of its divisors is an integer number (15249739).

Almost surely, 2^30499477 is an apocalyptic number.

It is an amenable number.

30499477 is a deficient number, since it is larger than the sum of its proper divisors (1).

30499477 is an equidigital number, since it uses as much as digits as its factorization.

30499477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 30499477 is about 5522.6331581955. The cubic root of 30499477 is about 312.4382026069.

It can be divided in two parts, 30499 and 477, that added together give a square (30976 = 176²).

The spelling of 30499477 in words is "thirty million, four hundred ninety-nine thousand, four hundred seventy-seven".