30629397 has 4 divisors (see below), whose sum is σ = 40839200. Its totient is φ = 20419596.

The previous prime is 30629321. The next prime is 30629411. The reversal of 30629397 is 79392603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30629397 - 2⁸ = 30629141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30629497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5104897 + ... + 5104902.

It is an arithmetic number, because the mean of its divisors is an integer number (10209800).

Almost surely, 2^30629397 is an apocalyptic number.

It is an amenable number.

30629397 is a deficient number, since it is larger than the sum of its proper divisors (10209803).

30629397 is a wasteful number, since it uses less digits than its factorization.

30629397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209802.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 30629397 is about 5534.3831634609. The cubic root of 30629397 is about 312.8812098771.

The spelling of 30629397 in words is "thirty million, six hundred twenty-nine thousand, three hundred ninety-seven".