61950987 has 40 divisors (see below), whose sum is σ = 108659936. Its totient is φ = 34432128.

The previous prime is 61950901. The next prime is 61950991. The reversal of 61950987 is 78905916.

61950987 is a `hidden beast` number, since 61 + 9 + 509 + 87 = 666.

It is not a de Polignac number, because 61950987 - 2⁸ = 61950731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61950997) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19503 + ... + 22455.

Almost surely, 2^61950987 is an apocalyptic number.

61950987 is a deficient number, since it is larger than the sum of its proper divisors (46708949).

61950987 is a wasteful number, since it uses less digits than its factorization.

61950987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 61950987 is about 7870.8949300572. The cubic root of 61950987 is about 395.6848387735.

The spelling of 61950987 in words is "sixty-one million, nine hundred fifty thousand, nine hundred eighty-seven".