980401769 has 2 divisors, whose sum is σ = 980401770. Its totient is φ = 980401768.

The previous prime is 980401651. The next prime is 980401783. The reversal of 980401769 is 967104089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974251369 + 6150400 = 31213^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 980401769 - 2¹⁶ = 980336233 is a prime.

It is a super-2 number, since 2×980401769² = 1922375257316658722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (980401069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490200884 + 490200885.

It is an arithmetic number, because the mean of its divisors is an integer number (490200885).

Almost surely, 2^980401769 is an apocalyptic number.

It is an amenable number.

980401769 is a deficient number, since it is larger than the sum of its proper divisors (1).

980401769 is an equidigital number, since it uses as much as digits as its factorization.

980401769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 980401769 is about 31311.3680474041. The cubic root of 980401769 is about 993.4241087736.

The spelling of 980401769 in words is "nine hundred eighty million, four hundred one thousand, seven hundred sixty-nine".