39897462 has 32 divisors (see below), whose sum is σ = 87909120. Its totient is φ = 11970720.

The previous prime is 39897461. The next prime is 39897463. The reversal of 39897462 is 26479893.

It is an interprime number because it is at equal distance from previous prime (39897461) and next prime (39897463).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39897461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3864 + ... + 9732.

It is an arithmetic number, because the mean of its divisors is an integer number (2747160).

Almost surely, 2^39897462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39897462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43954560).

39897462 is an abundant number, since it is smaller than the sum of its proper divisors (48011658).

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

39897462 is a wasteful number, since it uses less digits than its factorization.

39897462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988.

The product of its digits is 653184, while the sum is 48.

The square root of 39897462 is about 6316.4437779497. The cubic root of 39897462 is about 341.7027100848.

Subtracting from 39897462 its reverse (26479893), we obtain a square (13417569 = 3663²).

The spelling of 39897462 in words is "thirty-nine million, eight hundred ninety-seven thousand, four hundred sixty-two".