997637102 has 64 divisors (see below), whose sum is σ = 1955266560. Its totient is φ = 370418400.

The previous prime is 997637101. The next prime is 997637119. The reversal of 997637102 is 201736799.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997637101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318299 + ... + 321417.

It is an arithmetic number, because the mean of its divisors is an integer number (30551040).

Almost surely, 2^997637102 is an apocalyptic number.

997637102 is a deficient number, since it is larger than the sum of its proper divisors (957629458).

997637102 is a wasteful number, since it uses less digits than its factorization.

997637102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 997637102 is about 31585.3938078980. The cubic root of 997637102 is about 999.2117461525.

The spelling of 997637102 in words is "nine hundred ninety-seven million, six hundred thirty-seven thousand, one hundred two".