83470737947 has 2 divisors, whose sum is σ = 83470737948. Its totient is φ = 83470737946.

The previous prime is 83470737881. The next prime is 83470738031. The reversal of 83470737947 is 74973707438.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83470737947 - 2²⁰ = 83469689371 is a prime.

It is not a weakly prime, because it can be changed into another prime (83470737047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41735368973 + 41735368974.

It is an arithmetic number, because the mean of its divisors is an integer number (41735368974).

Almost surely, 2^83470737947 is an apocalyptic number.

83470737947 is a deficient number, since it is larger than the sum of its proper divisors (1).

83470737947 is an equidigital number, since it uses as much as digits as its factorization.

83470737947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24893568, while the sum is 59.

The spelling of 83470737947 in words is "eighty-three billion, four hundred seventy million, seven hundred thirty-seven thousand, nine hundred forty-seven".