997703472 has 40 divisors (see below), whose sum is σ = 2666280240. Its totient is φ = 321099520.

The previous prime is 997703461. The next prime is 997703489. The reversal of 997703472 is 274307799.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356979 + ... + 359762.

It is an arithmetic number, because the mean of its divisors is an integer number (66657006).

Almost surely, 2^997703472 is an apocalyptic number.

It is an amenable number.

997703472 is an abundant number, since it is smaller than the sum of its proper divisors (1668576768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997703472 is a wasteful number, since it uses less digits than its factorization.

997703472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716781 (or 716775 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 997703472 is about 31586.4444342822. Note that the first 4 decimals coincide. The cubic root of 997703472 is about 999.2339039133.

The spelling of 997703472 in words is "nine hundred ninety-seven million, seven hundred three thousand, four hundred seventy-two".