394704679037 has 2 divisors, whose sum is σ = 394704679038. Its totient is φ = 394704679036.

The previous prime is 394704678943. The next prime is 394704679043. The reversal of 394704679037 is 730976407493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385677018841 + 9027660196 = 621029^2 + 95014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394704679037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394704679087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197352339518 + 197352339519.

It is an arithmetic number, because the mean of its divisors is an integer number (197352339519).

Almost surely, 2^394704679037 is an apocalyptic number.

It is an amenable number.

394704679037 is a deficient number, since it is larger than the sum of its proper divisors (1).

394704679037 is an equidigital number, since it uses as much as digits as its factorization.

394704679037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 59.

The spelling of 394704679037 in words is "three hundred ninety-four billion, seven hundred four million, six hundred seventy-nine thousand, thirty-seven".