30423287 has 12 divisors (see below), whose sum is σ = 31809456. Its totient is φ = 29090880.

The previous prime is 30423277. The next prime is 30423299. The reversal of 30423287 is 78232403.

It is not a de Polignac number, because 30423287 - 2⁸ = 30423031 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 (30423247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97043 + ... + 97355.

It is an arithmetic number, because the mean of its divisors is an integer number (2650788).

Almost surely, 2^30423287 is an apocalyptic number.

30423287 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30423287 is a deficient number, since it is larger than the sum of its proper divisors (1386169).

30423287 is an equidigital number, since it uses as much as digits as its factorization.

30423287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30423287 is about 5515.7308672559. The cubic root of 30423287 is about 312.1778209162.

The spelling of 30423287 in words is "thirty million, four hundred twenty-three thousand, two hundred eighty-seven".