1607679121 has 2 divisors, whose sum is σ = 1607679122. Its totient is φ = 1607679120.

The previous prime is 1607679113. The next prime is 1607679163. The reversal of 1607679121 is 1219767061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1284218896 + 323460225 = 35836^2 + 17985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1607679121 - 2³ = 1607679113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1607674121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803839560 + 803839561.

It is an arithmetic number, because the mean of its divisors is an integer number (803839561).

Almost surely, 2^1607679121 is an apocalyptic number.

It is an amenable number.

1607679121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1607679121 is an equidigital number, since it uses as much as digits as its factorization.

1607679121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 1607679121 is about 40095.8741144273. The cubic root of 1607679121 is about 1171.4752669008.

The spelling of 1607679121 in words is "one billion, six hundred seven million, six hundred seventy-nine thousand, one hundred twenty-one".