30199977 has 6 divisors (see below), whose sum is σ = 43622202. Its totient is φ = 20133312.

The previous prime is 30199957. The next prime is 30199997. The reversal of 30199977 is 77999103.

It is an interprime number because it is at equal distance from previous prime (30199957) and next prime (30199997).

It can be written as a sum of positive squares in only one way, i.e., 22382361 + 7817616 = 4731^2 + 2796^2 .

It is not a de Polignac number, because 30199977 - 2¹¹ = 30197929 is a prime.

It is a super-2 number, since 2×30199977² = 1824077221601058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30199907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1677768 + ... + 1677785.

It is an arithmetic number, because the mean of its divisors is an integer number (7270367).

Almost surely, 2^30199977 is an apocalyptic number.

It is an amenable number.

30199977 is a deficient number, since it is larger than the sum of its proper divisors (13422225).

30199977 is a wasteful number, since it uses less digits than its factorization.

30199977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355559 (or 3355556 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 30199977 is about 5495.4505729740. The cubic root of 30199977 is about 311.4121388739.

It can be divided in two parts, 3019 and 9977, that added together give a square (12996 = 114²).

The spelling of 30199977 in words is "thirty million, one hundred ninety-nine thousand, nine hundred seventy-seven".