97758642 has 16 divisors (see below), whose sum is σ = 195639840. Its totient is φ = 32565792.

The previous prime is 97758641. The next prime is 97758649. The reversal of 97758642 is 24685779.

It is a junction number, because it is equal to n+sod(n) for n = 97758591 and 97758600.

It is not an unprimeable number, because it can be changed into a prime (97758641) 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, 7758 + ... + 15990.

It is an arithmetic number, because the mean of its divisors is an integer number (12227490).

Almost surely, 2^97758642 is an apocalyptic number.

97758642 is an abundant number, since it is smaller than the sum of its proper divisors (97881198).

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

97758642 is a wasteful number, since it uses less digits than its factorization.

97758642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217.

The product of its digits is 846720, while the sum is 48.

The square root of 97758642 is about 9887.2970017088. The cubic root of 97758642 is about 460.6648263301.

The spelling of 97758642 in words is "ninety-seven million, seven hundred fifty-eight thousand, six hundred forty-two".