978438201 has 8 divisors (see below), whose sum is σ = 1404936960. Its totient is φ = 602115792.

The previous prime is 978438191. The next prime is 978438203. The reversal of 978438201 is 102834879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 978438201 - 2⁷ = 978438073 is a prime.

It is a super-2 number, since 2×978438201² = 1914682626352232802, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (978438203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12544041 + ... + 12544118.

It is an arithmetic number, because the mean of its divisors is an integer number (175617120).

Almost surely, 2^978438201 is an apocalyptic number.

It is an amenable number.

978438201 is a deficient number, since it is larger than the sum of its proper divisors (426498759).

978438201 is a wasteful number, since it uses less digits than its factorization.

978438201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25088175.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 978438201 is about 31279.9968190535. The cubic root of 978438201 is about 992.7604490463.

The spelling of 978438201 in words is "nine hundred seventy-eight million, four hundred thirty-eight thousand, two hundred one".