981401974 has 8 divisors (see below), whose sum is σ = 1682403408. Its totient is φ = 420600840.

The previous prime is 981401947. The next prime is 981401983. The reversal of 981401974 is 479104189.

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

It is a self number, because there is not a number n which added to its sum of digits gives 981401974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35050057 + ... + 35050084.

It is an arithmetic number, because the mean of its divisors is an integer number (210300426).

Almost surely, 2^981401974 is an apocalyptic number.

981401974 is a deficient number, since it is larger than the sum of its proper divisors (701001434).

981401974 is a wasteful number, since it uses less digits than its factorization.

981401974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70100150.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 981401974 is about 31327.3358905605. The cubic root of 981401974 is about 993.7618240804.

The spelling of 981401974 in words is "nine hundred eighty-one million, four hundred one thousand, nine hundred seventy-four".