46721239 has 2 divisors, whose sum is σ = 46721240. Its totient is φ = 46721238.

The previous prime is 46721237. The next prime is 46721251. The reversal of 46721239 is 93212764.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46721239 - 2¹ = 46721237 is a prime.

Together with 46721237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46721237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23360619 + 23360620.

It is an arithmetic number, because the mean of its divisors is an integer number (23360620).

Almost surely, 2^46721239 is an apocalyptic number.

46721239 is a deficient number, since it is larger than the sum of its proper divisors (1).

46721239 is an equidigital number, since it uses as much as digits as its factorization.

46721239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 46721239 is about 6835.2936293915. The cubic root of 46721239 is about 360.1677176331.

The spelling of 46721239 in words is "forty-six million, seven hundred twenty-one thousand, two hundred thirty-nine".