97451709 has 8 divisors (see below), whose sum is σ = 132065952. Its totient is φ = 63902640.

The previous prime is 97451639. The next prime is 97451719. The reversal of 97451709 is 90715479.

It is a happy number.

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

It is not a de Polignac number, because 97451709 - 2¹⁵ = 97418941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97451719) 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, 266079 + ... + 266444.

It is an arithmetic number, because the mean of its divisors is an integer number (16508244).

Almost surely, 2^97451709 is an apocalyptic number.

It is an amenable number.

97451709 is a deficient number, since it is larger than the sum of its proper divisors (34614243).

97451709 is a wasteful number, since it uses less digits than its factorization.

97451709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532587.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 97451709 is about 9871.7632163662. The cubic root of 97451709 is about 460.1822041277.

The spelling of 97451709 in words is "ninety-seven million, four hundred fifty-one thousand, seven hundred nine".