60687731 has 16 divisors (see below), whose sum is σ = 68658240. Its totient is φ = 53539200.

The previous prime is 60687719. The next prime is 60687743. The reversal of 60687731 is 13778606.

It is an interprime number because it is at equal distance from previous prime (60687719) and next prime (60687743).

It is not a de Polignac number, because 60687731 - 2¹⁰ = 60686707 is a prime.

It is a super-2 number, since 2×60687731² = 7366001387856722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60687701) 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, 49931 + ... + 51131.

It is an arithmetic number, because the mean of its divisors is an integer number (4291140).

Almost surely, 2^60687731 is an apocalyptic number.

60687731 is a deficient number, since it is larger than the sum of its proper divisors (7970509).

60687731 is a wasteful number, since it uses less digits than its factorization.

60687731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 60687731 is about 7790.2330517129. The cubic root of 60687731 is about 392.9768496788.

The spelling of 60687731 in words is "sixty million, six hundred eighty-seven thousand, seven hundred thirty-one".