61077490 has 16 divisors (see below), whose sum is σ = 110111040. Its totient is φ = 24392880.

The previous prime is 61077463. The next prime is 61077493. The reversal of 61077490 is 9477016.

It is not an unprimeable number, because it can be changed into a prime (61077493) 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, 2491 + ... + 11329.

It is an arithmetic number, because the mean of its divisors is an integer number (6881940).

Almost surely, 2^61077490 is an apocalyptic number.

61077490 is a deficient number, since it is larger than the sum of its proper divisors (49033550).

61077490 is a wasteful number, since it uses less digits than its factorization.

61077490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 61077490 is about 7815.2088903624. The cubic root of 61077490 is about 393.8163358464.

The spelling of 61077490 in words is "sixty-one million, seventy-seven thousand, four hundred ninety".