39497701 has 4 divisors (see below), whose sum is σ = 39541600. Its totient is φ = 39453804.

The previous prime is 39497687. The next prime is 39497729. The reversal of 39497701 is 10779493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10779493 = 61 ⋅176713.

It is a cyclic number.

It is not a de Polignac number, because 39497701 - 2⁵ = 39497669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39497761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20571 + ... + 22408.

It is an arithmetic number, because the mean of its divisors is an integer number (9885400).

Almost surely, 2^39497701 is an apocalyptic number.

It is an amenable number.

39497701 is a deficient number, since it is larger than the sum of its proper divisors (43899).

39497701 is an equidigital number, since it uses as much as digits as its factorization.

39497701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43898.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 39497701 is about 6284.7196437073. The cubic root of 39497701 is about 340.5576230228.

The spelling of 39497701 in words is "thirty-nine million, four hundred ninety-seven thousand, seven hundred one".