60997431 has 12 divisors (see below), whose sum is σ = 89396216. Its totient is φ = 36967920.

The previous prime is 60997379. The next prime is 60997439. The reversal of 60997431 is 13479906.

It is not a de Polignac number, because 60997431 - 2¹⁰ = 60996407 is a prime.

It is a super-2 number, since 2×60997431² = 7441373177199522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60997431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60997439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83656 + ... + 84381.

Almost surely, 2^60997431 is an apocalyptic number.

60997431 is a deficient number, since it is larger than the sum of its proper divisors (28398785).

60997431 is a wasteful number, since it uses less digits than its factorization.

60997431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168062 (or 168051 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 60997431 is about 7810.0852108028. The cubic root of 60997431 is about 393.6441920789.

It can be divided in two parts, 6099 and 7431, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 60997431 in words is "sixty million, nine hundred ninety-seven thousand, four hundred thirty-one".