988671401 has 2 divisors, whose sum is σ = 988671402. Its totient is φ = 988671400.

The previous prime is 988671389. The next prime is 988671421. The reversal of 988671401 is 104176889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 591705625 + 396965776 = 24325^2 + 19924^2 .

It is an emirp because it is prime and its reverse (104176889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988671401 - 2⁶ = 988671337 is a prime.

It is a super-2 number, since 2×988671401² = 1954942278310605602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (988671421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494335700 + 494335701.

It is an arithmetic number, because the mean of its divisors is an integer number (494335701).

Almost surely, 2^988671401 is an apocalyptic number.

It is an amenable number.

988671401 is a deficient number, since it is larger than the sum of its proper divisors (1).

988671401 is an equidigital number, since it uses as much as digits as its factorization.

988671401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 988671401 is about 31443.1455328502. The cubic root of 988671401 is about 996.2094502202.

The spelling of 988671401 in words is "nine hundred eighty-eight million, six hundred seventy-one thousand, four hundred one".