732099421 has 2 divisors, whose sum is σ = 732099422. Its totient is φ = 732099420.

The previous prime is 732099413. The next prime is 732099479. The reversal of 732099421 is 124990237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625700196 + 106399225 = 25014^2 + 10315^2 .

It is an emirp because it is prime and its reverse (124990237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 732099421 - 2³ = 732099413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (732099721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366049710 + 366049711.

It is an arithmetic number, because the mean of its divisors is an integer number (366049711).

Almost surely, 2^732099421 is an apocalyptic number.

It is an amenable number.

732099421 is a deficient number, since it is larger than the sum of its proper divisors (1).

732099421 is an equidigital number, since it uses as much as digits as its factorization.

732099421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 732099421 is about 27057.3358075033. The cubic root of 732099421 is about 901.2736785349.

The spelling of 732099421 in words is "seven hundred thirty-two million, ninety-nine thousand, four hundred twenty-one".