697431433 has 2 divisors, whose sum is σ = 697431434. Its totient is φ = 697431432.

The previous prime is 697431421. The next prime is 697431481. The reversal of 697431433 is 334134796.

It is a happy number.

697431433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 575616064 + 121815369 = 23992^2 + 11037^2 .

It is a cyclic number.

It is not a de Polignac number, because 697431433 - 2²¹ = 695334281 is a prime.

It is not a weakly prime, because it can be changed into another prime (697431533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348715716 + 348715717.

It is an arithmetic number, because the mean of its divisors is an integer number (348715717).

Almost surely, 2^697431433 is an apocalyptic number.

It is an amenable number.

697431433 is a deficient number, since it is larger than the sum of its proper divisors (1).

697431433 is an equidigital number, since it uses as much as digits as its factorization.

697431433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 40.

The square root of 697431433 is about 26408.9271459482. The cubic root of 697431433 is about 886.8166512034.

The spelling of 697431433 in words is "six hundred ninety-seven million, four hundred thirty-one thousand, four hundred thirty-three".