30696691 has 2 divisors, whose sum is σ = 30696692. Its totient is φ = 30696690.

The previous prime is 30696671. The next prime is 30696739. The reversal of 30696691 is 19669603.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30696691 - 2¹⁵ = 30663923 is a prime.

It is a Chen prime.

It is equal to p_1898446 and since 30696691 and 1898446 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30696641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15348345 + 15348346.

It is an arithmetic number, because the mean of its divisors is an integer number (15348346).

Almost surely, 2^30696691 is an apocalyptic number.

30696691 is a deficient number, since it is larger than the sum of its proper divisors (1).

30696691 is an equidigital number, since it uses as much as digits as its factorization.

30696691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 30696691 is about 5540.4594574818. The cubic root of 30696691 is about 313.1101797494.

The spelling of 30696691 in words is "thirty million, six hundred ninety-six thousand, six hundred ninety-one".