61371976 has 32 divisors (see below), whose sum is σ = 122810400. Its totient is φ = 28667520.

The previous prime is 61371953. The next prime is 61371979. The reversal of 61371976 is 67917316.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61371979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8331 + ... + 13861.

It is an arithmetic number, because the mean of its divisors is an integer number (3837825).

Almost surely, 2^61371976 is an apocalyptic number.

It is an amenable number.

61371976 is an abundant number, since it is smaller than the sum of its proper divisors (61438424).

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

61371976 is a wasteful number, since it uses less digits than its factorization.

61371976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629 (or 5625 counting only the distinct ones).

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

The square root of 61371976 is about 7834.0268061834. The cubic root of 61371976 is about 394.4482517181.

The spelling of 61371976 in words is "sixty-one million, three hundred seventy-one thousand, nine hundred seventy-six".