547690397 has 2 divisors, whose sum is σ = 547690398. Its totient is φ = 547690396.

The previous prime is 547690373. The next prime is 547690459. The reversal of 547690397 is 793096745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 530334841 + 17355556 = 23029^2 + 4166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-547690397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547690337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273845198 + 273845199.

It is an arithmetic number, because the mean of its divisors is an integer number (273845199).

Almost surely, 2^547690397 is an apocalyptic number.

It is an amenable number.

547690397 is a deficient number, since it is larger than the sum of its proper divisors (1).

547690397 is an equidigital number, since it uses as much as digits as its factorization.

547690397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 547690397 is about 23402.7860948221. The cubic root of 547690397 is about 818.1728088821.

The spelling of 547690397 in words is "five hundred forty-seven million, six hundred ninety thousand, three hundred ninety-seven".