97147765 has 32 divisors (see below), whose sum is σ = 138692736. Its totient is φ = 64392960.

The previous prime is 97147753. The next prime is 97147777. The reversal of 97147765 is 56774179.

It is an interprime number because it is at equal distance from previous prime (97147753) and next prime (97147777).

It is not a de Polignac number, because 97147765 - 2⁵ = 97147733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58527 + ... + 60163.

It is an arithmetic number, because the mean of its divisors is an integer number (4334148).

Almost surely, 2^97147765 is an apocalyptic number.

It is an amenable number.

97147765 is a deficient number, since it is larger than the sum of its proper divisors (41544971).

97147765 is a wasteful number, since it uses less digits than its factorization.

97147765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749.

The product of its digits is 370440, while the sum is 46.

The square root of 97147765 is about 9856.3565783711. The cubic root of 97147765 is about 459.7032821816.

The spelling of 97147765 in words is "ninety-seven million, one hundred forty-seven thousand, seven hundred sixty-five".