30608073 has 6 divisors (see below), whose sum is σ = 44211674. Its totient is φ = 20405376.

The previous prime is 30608057. The next prime is 30608089. The reversal of 30608073 is 37080603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30608057) and next prime (30608089).

It can be written as a sum of positive squares in only one way, i.e., 29680704 + 927369 = 5448^2 + 963^2 .

It is not a de Polignac number, because 30608073 - 2⁴ = 30608057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30608023) 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, 1700440 + ... + 1700457.

Almost surely, 2^30608073 is an apocalyptic number.

It is an amenable number.

30608073 is a deficient number, since it is larger than the sum of its proper divisors (13603601).

30608073 is a wasteful number, since it uses less digits than its factorization.

30608073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400903 (or 3400900 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30608073 is about 5532.4563260816. The cubic root of 30608073 is about 312.8085843553.

Adding to 30608073 its reverse (37080603), we get a palindrome (67688676).

It can be divided in two parts, 306080 and 73, that added together give a triangular number (306153 = T₇₈₂).

The spelling of 30608073 in words is "thirty million, six hundred eight thousand, seventy-three".